I give you..

fire. I cut down the three processionary caterpillar nests, brought them back to our garden, and tried to set fire to them, first attempt didn't work, so I went back to collect some dry pine needles and grasses. On my return to the garden I found Roy bending over the little mound with a piece of lighted paper in his hand and the bottle of white spirit in the other, AND his sweater over his shoulders with the sleeves dangling down over the flames. You can guess my reaction, told him to bugger off into the house and leave me to do it. After several attempts the little mound of caterpillar nests and kindling caught fire.

The debris was consigned to the bin.