Originally Posted by
cbn42
Why do you have to cross it out? I just leave the tip and total lines blank, look at the amount to make sure it's correct, and sign. If I sign quickly without poring over the receipt, the employee will probably think I didn't notice the tip line.
That is an invitation to them to add whatever they want as a tip. How would you ever dispute the extra charge?
Always fill out the total line to make alterations easier to detect.