I leak a lot, to the point where I'm not sure if my penis realizes it doesn't need quite that much lubrication to work.
There've been a lot of incidents in the locker room, where I've been walking from my locker to the showers or something, and look down to see with dismay just a bit of a semi (not even close to hard) and a nice strand of precum detaching. Fortunately, I don't think most people notice.
Commando is out - doesn't take too much friction on the pants to make it look like I peed myself. Same with sleeping naked.