along the same lines..
sometimes when you open up a tab at a bar, they hold about $50 or so when they open the tab to make sure you can cover the tab..i learned this the hard way one day this summer when i had gone out the weekend before, when i checked my bank balance online the following monday and was overdrawn, started freaking out because i knew there was NO WAY that i could be overdrawn...just an fyi so if this ever happens to any of you, ,you don't freak out
