There's only so much he could do if he was passing out from injury or the fatigue of being Daredevil.
Alleyways, his desk, Claire's apartment, A villain's lair, in bed next to his one night stand... There's a lot of potential places to wake up wet.

Melvin would probably be a champ about it. "I know lots of people who do that. These pants have different fasteners, so you can quickly change protective briefs."