The funniest was when he doesn't set off with the others to look for the androids and Bulma chastises him for not helping. Yajirobe tells Bulma he can't fly and she apologises.
I think saving Goku from his fall vs Daimao. That's the least lazy he's ever been, literally got out of his car to run. Probably totalled his car too (where tf did he get a car from? He lives in a jungle).