I excepted the first job I was offered and NOW I've been offered another job with $1.50 more pet hour. I've only worked the first job 2 weeks and the second job wants me to start on the 14th of this month! Of course I want the second job more because of more pay and it's located closer to my place of residence. HOW do I go about leaving the first job without seeming ungrateful and possibly burning a bridge ?