He was not dumb. He wasn't a genius. But he also wasn't a five year old boy who couldn't change his own pissed pants.
"The only reason I'm ranting and raving and not home in the shower now is because you tried to drag me off to your place to do God only knows what! If this were the sane world, I wouldn't have any problem going home with a hot chick offering to help me. Under the circumstances, I'm a little fucking paranoid. I just almost got slaughtered by a humanoid version of the thing that scares me the fucking most. So sorry, yeah, freaking the fuck out here and just wanting to go do something sane. Like take a shower. By myself. Because nearly getting killed once in one day is enough. Okay?"