No prob. Just some random bits I found looking around for clues whether there already were any decisions from US courts wrt whether Waffle House is a well-known trademark:
Interestingly enough, Waffle House is mentioned in a 2007 article related to a US trademark law reform as an edge case [1].
This does not seem to be the first time that Waffle House appears to be overreaching: [2]. The balls to pull this off with a straight face, kudos to the colleagues.