You don’t see much ventriloquism these days. It’s a comedy form mostly associated with variety and Victorian music hall - although it goes back at least to the Greeks - and gives a lot of people the heebie-jeebies. I know several people who can’t watch Michael Redgrave’s chilling performance as the unbalanced ventriloquist Maxwell Frere, who believes his dummy is alive, in the 1945 Ealing horror film Dead of Night. And it’s Psych 1.01 to appreciate there may be some serious emotional issues in performers who can express themselves only through an inanimate doll - the words “multiple”, “personality” and “disorder” spring to mind.