You know.....pubic hair can be quite annoying. Do you ever get that when wearing briefs the hair gets stuck between the foreskin and the top end of the device itself.....and when you need to take a pee you yank it out, only to discover you painfully force the hairs to leave their precious position. I tell you briefs are evil, I've never experienced this problem with boxers.
One could ofcourse take the radical approach and get out a pair of scissors, but then again......I'd be very reluctant to put that sort of device near the nether region....