One of the projects Corbi is working on (for an unnamed business mogul) is an island fortress with a flammable moat. Try and breach it and it bursts into flames.

“We wound up literally building a 30-ft-deep lake [around the compound] skimmed with a lighter-than-water flammable liquid that can transform into a ring of fire,” Corbi explained to THR. “The only access to the island is a swing bridge.” And, of course, there are also backup water cannons to keep the poors out.

"Hello, we have severed your water intake and are now setting up these comically large fans in preparation for the throwing of several thousand pounds of tires and horse shit into your flaming moat."