I had a (female) friend "request" that I help her with some computer issues she was having. Thinking that it would take a substantial amount of my time (which it did, BTW) I offered a trade. Since she is Italian, I would exchange tech support for dinner. She agreed.
As we are working out the date and time, she said (in an email) why don't you show up on Friday at 1800? I am thinking, ugh, 6 pm, traffic on Friday is going to be a bear. So I countered 1700 because I was thinking, for whatever reason 7 pm. She thought that was strange, but agreed.
So I blithely show up at 7 pm and she answers the door with a surprised look on her face, like, where have you been. I told her I am on time, 7 pm, right??
Well, she was smart enough to know what I meant in the emails and wisely prepared dinner for 7 pm, just in case. We had a great lasagna dinner and I fixed her computers. (I thought it was one computer, but she whipped out a laptop in the middle of me fixing her desktop and well, I guess I was so drunk from all that ice cream that I included the laptop in as an extra value.) I haven't weighed myself this morning, but I fear I gained 5 pounds.
I am going to be a bit more aware of my military time in the future. Probably won't make that mistake again.