Well since i'm sick i'm doing stupid things as I always do when i'm stuck at home. Atm i'm playing with the precurser to a much larger project to build a pulse jet powered gokart. Well while trying to tune my "jar" pulse jet. I thought it stalled, where infact it flamed out. Since it's running from meth I didn't realise it was still burning because the flame is somewhat invisible during the day, so I opened it and in the process spilt some burning meth on thumb. Long story short huge blister! Short story with happy ending: At least the damn thing worked. Sounds like a very badly tuned motorbike.