I just watched a cold joke, which is so funny ~ is there anything more hilarious?

I once went out to dinner with my girlfriend, spent 95 yuan, and found that I didn't bring my wallet when I checked out. Fortunately, a buddy of mine works nearby, so I called him quickly, and then I went to borrow money from him and left my girlfriend as a hostage in the restaurant. As a result, I borrowed money from 1 yuan in a huff, and when I came back to check out, my girlfriend ordered another 17 yuan milkshake. I said, elder sister, are you so thirsty?