How much of a tip should one leave on a 72-inch pizza?

While there are bigger pizzas, this one goes into the record books as the largest delivery pizza - a pie that measures six feet across both sides. (That's a full 36 square feet of pizza.)

This 100-pound baby was baked at Mallie's in Southgate and delivered to a local fire department. You'll find this on the menu at Mallie's for $300, plus toppings.

Put ham and pineapple on it and you're speaking my language!