I had a funny one today, I was in the Qufim today trying to level. I was talking to one of my friends and this is what happend.
Him: /tell Hey buddy whatsup?
Me: /say nothing much I just got done beating my worm in Qufim
Me: /say mt..and i ment to say I got done beating a worm...Qufim
Me /tell lol I just said I was beating my worm in tell mode!
Him: lol...<ummm> tmi
This happend the other day on my LS
Me (just signing on): Hello! LS
Linkshell: Hello!
Linkshell Owner: Hey baby whatsup? Can I come over tonight and give you something?

Linkshell Owner: ummm....MT lmao.
This happend to me when I first joined FFXI 5 years ago.
Me: /tell OMG I fricken hate Evaan
Galka Friend: /tell why?
Me: /l I hate Elvaan cuz they walk like retartds...and they have big ass forheads!
(I was a Elvaan back then in a all Elvaan LS, lets just say they hated me after that lol.)