Wanting to bite tongue and snooker?

Chester is now having unwanted urges of wanting to bite his tongue.  This happened soon after Mark Selby the snooker player did a funny face or was it after hearing a thudding noise in the garden when Chester when Chester hung out his swimsuit.  This is like extreme torture.  Why on earth would people do this?  This feeling has been persisting for the past 30 minutes now.