I got pissed once and put on a pair of girls knickers, but as it turns out there's no room for tackle and the girl was not turned on, just very, very amused.
I have done it quite a few times. I'm indifferent about it until I'm somewhere with friends and they don't know, it makes me chuckle. My wife also gets a kick out of it, she always wonders how I can fit into her stuff.