<human>: Can you succinctly summarize the text in 1-3 sentences?

Back when I was in High School, I was part of a program that allowed local students interested in careers in Health Care to spend time shadowing doctors and nurses in a couple of local hospitals to see if the work appealed to them.  It culminated with a big group field trip to a local university's medical school (the date of which happened to be 2/14).

We toured the facilities, got a lecture in their big hall on the future of healthcare, and then got to visit the gross anatomy lab.  As it was a school day, the lab was empty of students, though the cadavers were still out on the work tables in various states of dissection.  We were given rubber gloves and told to go nuts poking and prodding.

I found one of the cadavers that had had his chest split open and all his internal organs exposed and cut such that each organ could be individually removed.  And I got an idea.

I waved over a girl from the group.  I told her I thought she was pretty and special.  I then proceeded to reach into the chest cavity of this cadaver and pull his heart out and present it to her with both hands, asking if she'd be my valentine.

She turned pale-green and almost threw up.  I didn't understand why everyone else didn't think it was as brilliant and romantic as I did.
<bot>: Pulled a human heart out of someone's chest and used it to try and get a girl to be my valentine.