I have been approached by a friend, who likes to party and drink with his buddies, however he wants to cut back on the amount of alcohol he is consuming, without no-one knowing that he is doing so.
What happens is that they hold parties regular, with shot beads ( bead chains with shot glasses attached) given out. He has his own. He want's to modify the shot glass so that it he consumes less alcohol overall whilst still being able to party. I have suggested using non-toxic silicone glue, where he can pour some into the inside of the shot glass and allow it to dry properly before using at his parties. Would this be safe for him to do and consume the alcohol knowing it is in contact with silicone? If not, what else can be used as a safe filler in the shot glasses?

I question why he feels a NEED to keep up a charade?

Isn't he mature enough to just do what he wants without needing to hide it?

You can have just as much fun... and in fact have more by not getting plastered.

If his friends were real friends... they wouldn't give him any grief...

And incidentally... the glass isn't always full... and it will be brutally obvious when its not.