Most annoying minor injury?

[Blarg]

Paper cut in the corner of your mouth from when you idiotically lick an envelope too clumsy and fast is a big one. Takes a long time to heal because it's right by where all the germs come in and out, and you work it constantly talking, eating, or just having an expression.

Also papercut in the the joint of your forefinger or web of your thumb. Damn thing never heals.

Personal least liked one that doesn't always leave a wound -- good hard bang of shin into a coffee table or similar item. Can send things flying and be dramatically loud. Major nerves there so it really hurts like hell,and can make you really look like a fool. Plus can make you limp a while and continue to look foolish on an extended basis. Also can leave a big bruise that's tender for a long time.

[mmcd]

The worst I've had was a broken big toe. That sucked for like 2 months.

Vacuum cleaner injuries of the penis (no pictures, just a discussion).

In fact, substantial portions of this.

[Hermlord]

Somehow I got a scar or something inside my nose, more like a flap of skin. I'm not a picker, but my finger's been up there pretty much 24/7 the last few days trying to get rid of it.

[gunt]

chewing tin foil with filings

[DrPublo]

In terms of pure annoyance value, you can't beat _really_ badly chapped lips.

The Doc

Charlie horses suck ass.

[Brain]

Calf cramp.

[Guyon]

Epididymitis

EDIT

Orogenital insufflation