I actually said LOL the other day instead of laughing. Weird.
Anyhoo
28 - When you add GA or prefix a word with X-. Ive been doing this a lot to my mates who don't even like FF (heathens), confuses the smurf out of them lol.
EDIT - 29 - When you feel a sense of happiness just because your reply goes to the top of a new page.