Gmod Server Exploits?

What are some exploits you guys use on Gmod servers. (Dark RP, TTT, etc.)

And also what you use for them (wiremod, lua scripts, etc.)

Just seeing what some of you smart people do when trying to exploit a server or just mess around.

i have some darkrp exploits but i dont release them add me on steam and we could talk http://steamcommunity.com/id/BajramKMN/