Wyldecrest Parks interview questions

Invited to interview near Nottingham, 300 mile round trip from my home. I left the meeting furious due to half way through the interview and answering one of his questions he got up, without any apology, and went to the toilet. From his throne he shouted for me to continue with my answer, which was disrupted by a flushing sound. Who the hell do Wyldecrest think they are that they can treat candidates with 30 years experience like this? I have since written to their HR department for a response and received no communication at all.