Hey, you never know.
1. After your blowjob buddy comes back from getting a filling (and I'm not talking about a creampie). Her mouth will be numb from the novocaine, and she chances of her chomping down on your dick are high!
2. Avoid getting a blowjob on a rollercoaster. Getting a blowjob while traveling on a bumpy cart going 130 miles per hour is just asking for disaster.
3. When the slut offering you to give the blowjob has a first name of Lorena and a last name of Bobbit.
4. If the girl you just met in a club has a deep voice and an Adams Apple... And hands bigger than yours! She may know how to please your cock, but she may also have a bigger cock than you!
5. If she's whining about buffing the bishop with her mouth, then you'll be better off by just going into the bathroom and jerking yourself off. Nothing kills the mood and a perfectly good erection than a girl who keeps whining about her sore jaw, the taste of precum or the scent of your musty nuts.
6. Never get a blowjob from an epileptic bitch in a night club. While it may be a thrill the get a blowjob in public, it'll be a major pain when she clamps down on your cock and foams at the mouth.
7. Never pick the hottest girl in the group if you are just seeking a blowjob. It's a FACT that the ugliest/fattest girls give the best blowjobs. If a knob slobbing is all you seek, do yourself a favor and pick the odd woman out!
8. Just because a couple fingers pop out of a hole in the mens bathroom doesn't mean that you should stick your cock through it... Especially if that hand has hairy knuckles and a wedding band! That is of course unless you don't mind a 45 year old married fat guy giving you a blowjob through a hole in the wall.
9. Just because the chick at the STD clinic is hot, doesn't mean that you can look past that open sore on her mouth. While she may look sexy when she's on her knees giving you a blowjob, she might not look so sexy when you wake up the next day to see what else she gave you!
10. While your best friend's mom may look fucking amazing, you may want to keep in mind that your best friend is an escaped convict who fled the joint after being charged for double homicide. Avoid blowjobs from your buddy's mom at all costs!