OK, so I got this job a couple weeks ago as a christmas casual (with the potential to stay on permanently), but since then I was offered another job (permanent partime) and have already had training at job#2. The boss seems laid back and there seems to be shift flexibility and the people seem cool. So now I Have to ring up job#1 and tell them I can't work there anymore (not that I've actually had a shift).
What should I say?
I'm a bit nervous about it