I just had the most painful experience this morning. I masturbated last night, and I guess some of the semen dried in my urethra and stuck it together, so when I got up and went to piss I could feel the piss filling up my dick but nothing was coming out. It happened so quickly I couldn't stop the flow and OH MY GOD it fucking still stings. After a couple of seconds the pressure blew open my urethra, and I had to clean urine off my floor and toilet because it sprayed out.
WTF. Great day.