Granted this was a few years ago but I felt some folk may get a kick out of it.
I worked for a company that owned bars/restaurants/hotels and I worked as the Sales and Events Manager for one of their premium venues. It was a quagmire from the start but one thing I very quickly discovered, having had the bonus scheme talked up to me at all stages of interview and hiring, was that A) you had to work through your probation period before they'd start to pay out (something I asked about and was assured wasn't true) B) meeting my targets didn't contribute towards it, as it was based off the targets set for the venue. So I could smash all my targets but if the venue didn't meet its overall targets I got nothing. Oh, and the venue had never exceeded targets in any meaningful way before I arrived.
One of many pants on head moments displayed by that company before I quit.