I ate a chunk of resin (approx 1.5cm³) that wasn't heat activated and I started trippin out after about 1 - 2 hours.

It was an awesome stoned, my eyes where very bloodshot and I felt like I was on a boat (I started getting sea-sick), every time I focused on an object and turned my head around so the back of my head was facing the object, I could see it at the back of my head :P