Grubber sounds upset, or guilty. It might be about the t-shirt part, and he not knowing anything about it, or the fact that it was a t-shirt for a show he will

Grubber sounds upset, or guilty. It might be about the t-shirt part, and he not knowing anything about it, or the fact that it was a t-shirt for a show he will not longer be doing (and Dan did not know anything about it). Pretty uncomfortable.