I was subcontracting a few years ago and the parent company asked me to code a kill switch into the web app because the client was not paying their bills. I tol

I was subcontracting a few years ago and the parent company asked me to code a kill switch into the web app because the client was not paying their bills. I told the parent company they could just give me a call and I could shut off the web server at any time. They said they would rather just have me code the switch because they didn't want to involve me in the situation. I thought that was nice of them. I don't know if they ever had to use the switch.