Glenn, who turns 47 today, admits, though:
"I'll be honest, at the moment it has got to a situation where I am not too sure what the date is.
"But you get to a certain age where you don't worry about birthdays, you just get on with the job, whatever job you do and do it to the best of your ability - that is what we are all trying to do here."
If Friday the 13th might not be the best day to have a birthday, Glenn is at least looking for a change in fortunes the day after, with the Hammers having taken two points from the last 18 facing a Manchester United side that has not conceded in three games.
The game represents the 100th meeting between the pair, but unfortunately Raimond van der Gouw, who has featured in that statistic as a Manchester United player, will not be on the bench against his former club.
Raimond, who joined on a free transfer in the summer after six years at United, has not recovered from an ankle injury which saw him taken off in the first half of the reserves' 3-0 defeat by Derby midweek.
His place as sub is likely to be taken by David Forde, although Steve Bywater, who made his come back after a wrist injury when he replaced Raimond, has also travelled.
Also out is Eduoard Cisse [hamstring] while Nigel Winterburn, who has a similar problem, is doubtful.
Don Hutchison, Paolo Di Canio, and Fredi Kanoute are all, of course, on the injured list.
SQUAD:
James, Forde, Bywater, Dailly, Winterburn, Breen, Cole, Sinclair, Schemmel, Rahim, Carrick, Minto, Moncur, Repka, Ferdinand, Defoe, Pearce, Camara, Byrne, Lomas.