I'm all in favour of paying someone to work! And every minute spent on-call should be compensated. What I don't like is "if my service is flaky then I get mor

I'm all in favour of paying someone to work! And every minute spent on-call should be compensated. What I don't like is "if my service is flaky then I get more money", because I don't want my service to be flaky but I like getting money. If you're paying me to be available, but giving them time in lieu for any time worked, then you're not getting more of my time for free. Conversely, if you pay me only when I'm called out (which I recognise isn't something you've suggested) then I get the hassle of being on call but I'm only paid if my service breaks.