not right in the head as in he wasn't normal and an extremely eccentric, peculiar character.
His humming on the piano, his weird chair, coats in the summer, his perfection of Bach but ridiculous interpretations of Brahms, e.t.c.
I still remember the surprise waking up that morning and hearing we hired Gibby. Didn't quite understand it. But I honestly can't see anyone else fit for the role (maybe Butterfield)
he was getting railed on twitter a lot about it. I think one Baltimore writer as well as one guy that Donaldson used to have as a coach or use his products (not the Tewksberry guy)