Funny you should post that....
I needed to move my empty "pull-behind-car" boat trailer about 1 km a few days ago and toyed with the idea of doing it with the bike (because it only weighs about 160 lbs unladen).
But didn't. It's (a) too wide to get onto the bike path
, and (b) I don't have a slow moving vehicle sign to attach to it to pull it on the street.