Total for the two of us, including tax, is $77.72.
I left $15.
I was under the misguided opinion that I was a good tipper at roughly 20% (before tax!). I was somewhat incredulous at the last place I ate at when they had a 25% in the list of suggested tip percentages. I guess that wasn't as nearly so outrageous as purposely bad math. Generally I just move the decimal point over one place to get ten percent and then double it and round that number up or down to the closest whole dollar amount for addition ease. That works for me most of the time, I'd say roughly five percent of the time I get really bad service or exceptionally great service and I adjust it accordingly. I'm not sure of the tax rate (8.25%-9.0%?) in the Longhorn location you chose, but I probably would have only put out a $14 tip.
If I have to start tipping at 25% I'll stay home and eat PB&J.
I'm actually sorry to hear this, as I like Longhorn Steakhouse. I eat there almost every time I travel to Chicago. Despite living in a major urban area of Texas, the closest Longhorn Steakhouse is almost 90 miles from my house.