Oh yes, you are so right, they will push it as far as they can.
I agree. Obviously it's your decision but they won't stop till you say no, or ask to be paid for the extra job. Why would they if they can get the job done for free, right? Sad, but true.
The funniest and sadly ironic part about this is that my manager just had a fight with a sponsor because they are trying to get extra value without paying for the sponsorship into the event...hmmm she told them a big fat NO, so the parallel is uncanny.
It will come to a head at some point and I'll have to then stand my ground and simply show them that the hypocrisy is ludicrous.
See? Thar's a good weapon you have there. Remind them of that conversation. 💪