A pavilion for modesty?

The pavilion at the M.A.Chidambaram Stadium at Chepauk is named after C.P.Johnstone. I am sure he has done great deeds on the cricket field, to have the pavilion named after him, but that can keep for a later post. One of the odd things I remember reading about Mr. Johnstone is that if a team-mate was approaching the half-century or the century mark, he would sit in the pavilion wearing nothing but a towel around his waist. And he would not change until his team-mate either went past the milestone, or got out before doing so.

But what would he do if there was someone closing the day, or even the session, on 49 or 97? Maybe that's why he wanted the whole pavilion to himself!