My bf also goes all day without eating and rarely pees during the day. He is the only person I have ever known who will eat dinner, sit around and watch tv, etc., in the evening, then when it's time for bed will go to bed without peeing first.

When he does pee, he'll do it for a minute or longer, it seems. If we're getting ready to go somewhere and we both go to pee at the same time (in different bathrooms), I'll be able to pee, fix my makeup, put on my shoes, change my earrings... and he's still peeing (the door is open and I can hear the stream). (I used to have a dog like that. She'd hold it all day, then when she went, she'd do it for a minute and a half!)

Maybe these guys aren't as tuned in to the signals of their bodies as the higher D men?