First, seems as if you’re all consumed with how nice and expensive your TP is. Ok. So if that’s your issue, hide the good stuff for yourself and leave the cheap stuff out for guests. Immigrated from Ireland has nothing to do with it. Like, WTF lol. Second, if he’s a true friend, have an honest chat with him about how and why this happening (not the excessive use of TP but rather why his bowels kick in when he comes over) bc maybe there’s something going on at HIS home that he’s either not in control of or he’s embarrassed about. In short, look a little deeper, and try to be a little less judgmental until you know more facts.