It was about 15 years ago when my Dr first introduced me to Imitrex, I was in the middle of a CH and my wife had driven me to the Dr's office we were in a dark room and the Dr brought in the kit and was in the process of showing us how it worked. Somehow she managed to set it off and it started spraying all over the walls, me, my wife, the ceiling everywhere it seemed like the thing sprayed for 10 -15 sec. The Dr and I laugh about it now but back then on that day even though it was funny there was no laughter.