[vic-traill]

Which brings to mind the old chestnut:

The optimist believes the glass is half full. The pessimist believes the glass is half empty. The engineer says the glass is twice as large as it need be.

[Qwertious]

That engineer hasn't accounted for the drink sloshing around when carrying the glass. If you fill it to the brim then it's a spill waiting to happen.

[bombcar]

And tech support yells “who’s been drinking my beer!”