So fyi....
I was called in Thursday on Wednesday, was asked if I could make a Monday class.
I said yes. Went in for medical after already doing a second drug test week prior. I was there the entire day till 1630.
Showed up for work Monday.
Word of advice..... Wait till they officially tell you your start date. And only then..... Give notice.
My opinion, if you do what you are supposed to do, you this will be your last job you will need. Don't worry about giving short notice to last job.... This is the job.... period!!