Stupidity: Ray, Avi and Lena covered up a murder. Ray tells Avi that Lena rented a car in The Dead guy's name, and he needs Avi to drive down south, use his passport at the border, and then to fly to Mexico City. The Dead guy's passport has been altered with a picture of Avi, however still in the name of The Dead guy, Varick. All border crossings and airports have security cameras. If they ever want to look into Varick's disappearance they can search his name and see it is not him at the border or airport. (00:42:23 - 00:43:00)
Stupidity: Mickey, and Terry are robbing a marijuana dispensary. They subdue the armed security guard by putting him to sleep and handcuffing and duct taping his mouth with no gloves on. They are touching door handles, door frames, shiny handcuffs, and duct tape which all are excellent sources for leaving behind fingerprints. The sticky side of tape is an excellent source of leaving fingerprints. (00:24:30)