We thought about this in 2002 already :) "Meeting cost calculator" where the cost of the meeting would tick up in real time on the wall. IIRC the idea was to

We thought about this in 2002 already :) "Meeting cost calculator" where the cost of the meeting would tick up in real time on the wall. IIRC the idea was to have everyone tap their keyfob on a reader and it'd get everyone's hourly salary from a database and start counting the price by the minute.