A usefully garrulous person, one Hapgood, a solicitor, found much.

"Whom do you think I met yesterday? Old Sabre! You remember old Sabre at
old Wickamote's?... Yes, that's the chap. Used to call him Puzzlehead,
remember? Because he used to screw up his forehead over things old
Wickamote or any of the other masters said and sort of drawl out, 'Well,
I don't see that, sir.'... Yes, rather!... And then that other
expression of his. Just the opposite. When old Wickamote or some one had
landed him, or all of us, with some dashed punishment, and we were
gassing about it, used to screw up his nut in the same way and say,
'Yes, but I see what he _means_.' And some one would say, 'Well, what
does he mean, you ass?' and he'd start gassing some rot till some one
said, 'Good lord, fancy sticking up for a master!' And old Puzzlehead
would say, 'You sickening fool, I'm not sticking _up_ for him. I'm only
saying he's right from how he looks at it and it's no good saying he's
wrong.'... Ha! Funny days.... Jolly nice chap, though, old Puzzlehead
was.... Yes, I met him.... Fact, I run into him occasionally. We do a
mild amount of business with his firm. I buzz down there about once a
year. Tidborough. He's changed, of course. So have you, you know. That
Vandyke beard, what? Ha! Old Sabre's not done anything outrageous like
that. Real thing I seemed to notice about him when I bumped into him
yesterday was that he didn't look very cheery. Looked to me rather as
though he'd lost something and was wondering where it was. Ha!
But--dashed funny--I mentioned something about that appalling speech
that chap made in that blasphemy case yesterday.... Eh? yes, absolutely
frightful, wasn't it?--well, I'm dashed if old Sabre didn't puzzle up
his nut in exactly the same old way and say, 'Yes, but I see what he
_means_.' I reminded him and ragged him about it no end. Absolutely the
same words and expression. Funny chap ... nice chap....