From the TV series How I Met Your Mother. In episode 9 of season 1, titled: Mary the Paralegal, the following expression I have a soul is used.
What does it mean when someone says: I have a soul?
00:06:50 Look at how hot she is. Robin would be so jealous.
00:06:54 I'm not trying to make Robin jealous, Barney.
00:06:57 Look, I... Tell Mary thanks, but no thanks. I have a soul.
00:07:01 OLDER TED; And then your Uncle Marshall and I
00:07:03 had one of our famous