Lot's of funny stuff, but most of it is like... you'd have to be there to really feel the funny.
Just last week at work I hit myself in the balls and with no one around to laugh at me, I laughed and made fun of myself. Just came natural.
One time I was working at Menard's with my buddy and we were up in the genie lift putting together some sign for the mezzanine. After 20 minutes he was getting nowhere with this thing and finally, I kept bugging him to let me try. He was refusing and then randomly, completely out-of-the-blue like I was possessed I snatched the device from him and said in a purely demonic voice "YOU HAD YOUR CHANCE!" He froze dead silent for a second and we both looked at each other in pause and literally rolled over laughing. People would be walking by down below and all like "WTF is going on up there."
'Till this day when I see him I speak in said voice. Good times.