I don't think this example ought to count as a date, per se; considering it was an open invitation to anyone in the SHU Physics Department, for my birthday dinner. Still, the only person who didn't back out on me--and at the last minute, mind you--was my lab partner Kathleen (who is now a Physics lab professor).
In retrospect, I think she probably didn't want to give me the wrong impression (like she was interested in me other than as her lab chum); so, the whole time was sort of like pulling teeth with her, to order something even vaguely delicious.
It was my birthday, it was dinner, and I invited her; so, I had every intention--and I said so upfront--of paying whatever it turned out to be (there was only 2 of us for crying out loud). But basically, she only ended up ordering a hamburger--and it didn't even have cheese on it; and she drank water the whole time!
This was an Irish cuisine restaurant (certainly, no place for a plain, ordinary hamburger--or so I thought!); and I initially, I figured that I did the right thing by her, considering she was very Irish herself. Still, no dice. Frankly, I don't even remember her having dessert. :(
So Ladies, please let this be a lesson to you: your lab partner WILL ACTUALLY FEED YOU, without expectations!