A man in Brazil turned part of his backyard upside down in a misguided attempt to kill some bugs.

“My wife complained that there were a lot of roaches invading our garden,” Cesar Schmitz told FocusOn News, according to the New York Post. “She is scared of them and begged me to destroy their nest under the ground once and for all.”

Schmitz poured some gasoline into the hole, then started tossing matches into it. Nothing happened at first. But after a couple of false starts: