very true, most of the 'incidents' in the HoC seem to be related to a substance which is legally sold there.
https://www.standard.co.uk/news/politics/mp-goes-berserk-in-commons-bar-brawl-7446095.html
https://www.express.co.uk/news/uk/889082/house-of-commons-sport-and-social-bar-shut-down-after-man-glassed-in-face