Need a chair? Easy. Just flip a 5 gallon bucket upside down and park yourself on top.
It’ll support your weight, but it won’t feel nice. Buckets in the raw weren’t designed to be sat on comfortably, they were designed to be practically indestructible. Buckets have a lot of plastic ridges and seams which like to dig into your butt. It’s fine if you’re just sitting down for a few minutes, but increasingly painful the longer you sit on one.