I once was on a team that lost 141-10 :P We were down 80-2 at the half, so the second half was better..
I should add that whilst I'm not the greatest player, I'm a pass-first PG with decent ball-handling who can't shoot. No-one else on my team could catch or dribble the ball, let alone shoot, so in the second half I just started driving to the basket every time and scored 8 points from the foul line (from about 20 shots :P).
Ugh. I was never great, but the teams I have been on have always been appalling. I should never, ever be the best player on my team...