3. When your butt hairs gets stuck together with dried shit and you have to cut it out
4. When an Asian man kills a black guy and has a surgeon remove the black man's penis and balls and surgically puts them on the Asian man (removing his penis and balls first)
The act before your penis becomes erect due to factors such as seeing a woman and/or man that gets you horny. Normally, you get a warm, tingly feeling then your penis shoots up and your genitals start pumping up some sperm.