Blade VS Buffy Summers - S12-E10
Stupidity: Blade fights several vampires for a minute or two, and then pile drives the Asian lady vampire into a table. Only then does he decide to throw a UV bomb up into the air to kill all the vampires in the room. He should have led with that! Wiped them all out from the start, and by not doing so, he gave plenty of vampires time to escape. (00:19:06)
All Politics is Local - S1-E24
Stupidity: At the end of the episode, Joey and Melissa are in the kitchen, discussing Melissa's father. A small pot on the stove is very full of broccoli; almost overflowing. It makes no sense that Joey - who is a proficient cook - would be trying to prepare that much broccoli in a pot of that size.