I went to Eggs 'n Things today and noticed a 3% surcharge sign on the door. To its credit, the sign did indicate that this would not be charged for cash or debit transactions. I didn't have a debit card available that I was willing to test, and I paid by credit card. Additionally, there was a 3% kitchen staff surcharge that I didn't see indicated on the menu or elsewhere in the restaurant and only appeared on the bill. The 3% surcharge only went to the kitchen and not the waitstaff, so the implication was that one shouldn't reduce the % of the gratuity.