xxx: I invented the best way to check electronic scales! Need to weigh myself, drink a liter of beer and weighed again!
yyy: more precisely it will be to weigh a liter of water in the bottle.
xxx: I never said "precise", I said the best!

Vashper should be declared a national treasure.

There is no prophet in his own country, John 4-44

Actually, the best way is also more precise, as it accounts for the "vessel."

Vashper, I don't give a shit what anyone says...you're one funny guy!