I tend to attempt to ruin asshat companies like that, usually because it’s only the tip of the iceberg of abuse. I’ve taken out two so far, one by quitting as the sole engineer when their only client went down and i wasn’t paid properly and secondly by scaring all the permanent staff off after getting a bailiff appointed to take kit away from their office because they didn’t pay my invoice. I don’t shed an ounce of guilt for this.