[@Unknown100] I know. I knew I hadn't done anything wrong, but I thought I would check just in case.

The thing is, he would be able to identify those two in this situation. He has been around and about both Scientist and Supernatural forces, and he has a way of picking things up quite easily.

And technically, he can sneak into anything. This example was very specific - the two on the stage were talking with each other, and the audience was either talking between themselves or focusing on the two talking. You have to be paying quite a bit of attention to notice this guy walking around - especially because he almost always has his breathing and footsteps silenced.