I'd love to do a musical actually. My background is in music. I have a bachelors in music. I thought that I was going to be a composer, long ago when I first started. So it was amazingly fun to do those two routines in the film.
Yes, there are bodily function issues that are a central premise of this movie and I think they're handled with amazing delicacy of humor.
I don't think people can be mad at Nick or hold anything against him, because he almost makes fun of himself, ... He knows how other people feel about him. So he disarms them. He will not allow them to get into his head because he already knows their position on him.