Firstly, get creative. I have spells that I attune just to mess with gankers. The bridge is an awesome spot to do something equally awesome before you probably die. Occasionally, I'll attune Acid Surge, just in case, and when I get ganked I run down there, wait for the baddies to huddle on the narrow walkway and destroy all of their equipment. HAHAHAH. Listen, that is BOSS. There are so many hilarious things you can do on your way out, it's almost made me look forward to getting triple-teamed.
Second, take time to observe the gankers' noob mentality. And laugh. Spawn in to three dudes. As you're spawning, one guy casts TWoP, another guy casts CHSM, and the third guy actually casts--get this--Darkmoon Blade. My first thought is, "What's all that for?" Seriously, dudes? For ONE guy?! And who casts DMB on the offensive end of a 3v1? IT ONLY GETS ONE CAST. Hahaha. It's almost like they misread my gamertag as "That BOSS from Ong Bak".
Anyway, anyone else have things they enjoy doing to take some of the sting out of being ripped off?