Warning to those who use brake cleaner

[55 Chevy]

When we got back from holidays the wasps had built a couple of huge nests, 1 under my deck, another under the eves. Picked up a can of wasp/hornet blaster from the local store but I used it all up & they were still buzzing in there. I remember reading this thread while in NZ & I thought that I would see if the stuff is lethal to insects. Shoved the pin nozzle in the nest sprayed for a couple of seconds & immediately action ceased. Problem solved.