DH told him to sit down and read something funny to relax himself, which apparently worked.
I asked DH after he left what would cause that besides an erection (wasn't gonna ask that, that's ds's business) Dh said that yes it was difficult to urinate with an erection, or stress, or even dehydration but that actually sitting and just forgetting why your there helps.
Ladies, this is the first problem that he's brought to me that I didn't know how to help. It's the beginning of the end :/ *sigh* It's becoming a "guy" thing......I need another female cat. lol