"For a job like getting rid of the drug dealer next door, I'll take a hardware store over a gun any day. Guns make you stupid; better to fight your wars with duct tape. Duct tape makes you smart."
and of course you can't forget Sam Axe
god I love that stupid show so much
another favorite would be the one where Mike convinces the asshole of the week that there's a psychopath out to kill them both because of a car he sold and when his brother (who's in the mob) demands to see the scene of the violent shootout they stage they rig it to make it look like he's gone crazy
I always loved that Fiona, an internationally known terrorist, can hold a garage door from a charge by ~10 guys, fire scores of rounds, and not hit a thing.