Earrings + touch screen phone = bad news

Yea, title says it all. I just placed my phone on my shoulder, held it with my head as I've done many times before .... and suddenly it went quiet. I glance quickly at my phone, only to realize that it's put my current call on hold and started dialing another number! Nooooo! Luckily I didn't miss anything important. Still not good though. I'm going to have to be very careful with these things.