I just got a second job at a bar that is a direct competitor with my current
place and I just told them the truth that I wanted more Money!!! Play up the
greed factor. Also maybe you could say that you needed a different enviroment
for a couple of nights. my motto however is to say what ever it takes to land
the job. So if there are rivalries between owners/managers of the places you
are looking at, you should be very careful in your words since it is walking
on very thin ice.