Character mistake: Near the end, when Michael reveals to Brennen he knows everything about him, he says, "I know everything about Tyler Brennen." Michael emphasizes "Tyler" as if it's a big deal that he knows Brennen's first name. Michael already knew Brennen's first name from the first time he met him, in Season 2, Episode 15 "Sins of Omission."
Hard Bargain - S1-E9
Continuity mistake: When the kidnapper holds Michael at gunpoint on the balcony, his hand holding the gun is shaking. In the next shot, from behind, his hand is perfectly still. The shot then switches back, and his hand is shaking again.
Character mistake: Michael states that if you touch someone being tasered, you'll be tasered too. That's not true unless you touch them right between the probes. And in a later episode Michael's touching a man being tased with no ill effects.
Continuity mistake: When Michael's mother is arrested, we see the cuffs go on with her bracelet nearer her hands than the cuffs. The shot changes and suddenly her bracelet's further up her arm - no way it could have moved there past the cuffs.
Broken Rules - S1-E7
Continuity mistake: Michael has to prove himself for his new "boss" Concha Ramirez. He walks across the street to Fiona and starts a mock robbery to get her purse. When he approaches the car, the window is down. Three seconds later he is at the car and the window is up so Michael can break it. Watch as the window frame goes from clean (as if the window were down) to broken pieces of glass on the frame between shots. (00:24:10)
Wanted Man - S1-E8
Continuity mistake: When Michael is eating his slush, the way he holds his cup changes between shots.
Continuity mistake: When Michael has his gun on the dirty cops head, the gun is resting on his forehead and Michaels hand is on his throat. In the next shot the gun is right between the cops eyes, and his hand is on his chest. This keeps going back and forth a few times.
Good Soldier - S2-E9
Revealing mistake: When Michael is sliding under the semi trailer you can see multiple scrape marks going under the trailer. They probably tried to get the shot a few times.
Factual error: When Fiona slips Michael a "key" during their kiss, Michael keeps it and no problem. In reality, all prisoners are searched thoroughly before returning to their cells. This includes a full oral search.
Continuity mistake: When the heroin importer is questioning Sam, he has his hand around his face, with his fingers touching his ear. When the shot moves to the front, his hand is more on his throat and nowhere near his ear. When we cut to the back, his hand moves again.
Revealing mistake: Near the end of the episode, when Andy opens the front door to meet Baranski the loan shark, he leaves the door open behind him for the camera man.
Last Stand - S4-E18
Revealing mistake: After Michael blows up his car, the bad guys' car hits it and pretty clear jolts to a near-stop. In the reverse angle it suddenly smashes over the top of the burning vehicle at great speed. Not to mention that without a ramp there's no way it could have jumped the wreck anyway.
Revealing mistake: When Fi triggers the bomb under the car, in the shot showing the explosion, the bomb itself, with an obvious red flashing light, has disappeared, plus the explosion originates from within the car, rather than underneath where the bomb was placed.
Continuity mistake: When Sam bugs Ari's Ferrari, he places the bug under the dash cowl above the steering wheel. Near the end, after the Zamir family's warehouse is found empty, the father is shown searching his son's Ferrari and pulls out the bug from behind an air vent on the passenger side, not where the bug was originally placed.
Revealing mistake: Near the end when everyone is trying to escape the building before the explosion, the team escapes but Sam is missing. Michael calls out for Sam until he is shouting. A view of the building shows a stack of something with a horizontal gap in the middle. Sam's arm and blue shirt can be seen in the gap while Bruce Campbell waits for his cue to come out with the hostage.
Visible crew/equipment: About half way through when Michael enters his mother's house, she thanks him for the new coffee maker, then on the right is a woman whose head moves. In the next shot she has her hand over her mouth. (00:23:45)
Continuity mistake: Michael attempts to have a conversation with his mother Maddie while she is folding clothes. She picks up a blue Hawaiian shirt and begins to fold it. The angle switches for a moment to Michael and then immediately back to Maddie, only now she is folding a white shirt. The blue shirt is already folded on the table and is seen under another shirt. (00:11:00 - 00:11:30)
False Flag - S1-E10
Continuity mistake: When Michael is talking to Evelyn she picks up her glass and brings it to her mouth. When switching to a different angle her glass is back on the table, and she has her hands on her lap.
Plot hole: Someone as careful and controlling as Timo would never force anyone into working for him, for exactly this reason.
Chosen answer: It might not actually have one, in which case, he'd have to go down into the club and use theirs. As for showering, going to his mother's house or a gym membership would take care of that.
Captain Defenestrator