Please give me horror stories about dating someone who lives in your apartment building so I don’t do it.

I moved into a new building about 4 months ago. I immediately noticed how hot this guy was as soon as I moved in and we would run into each other while walking our dogs. Well, he asked me to dinner, I’m very attracted to him, he’s totally my type, but all of my friends are telling me not to “sh*t where I eat.” So give me some horror stories about what happened to you so I don’t do it.