[via]

MEN will be invited from the audience to protect those under the Influence of the Gas from injuring themselves or others. This course is adopted that no apprehension of danger may be entertained. Probably no one will attempt to fight.

That description is followed by:

THE EFFECT OF THE GAS is to make those who inhale it, either LAUGH, SING, DANCE, SPEAK OR FIGHT, &, &.

Everyone wants to suck it up.

Those who inhale the Gas once, are always anxious to inhale it a second time. There is not an exception to this rule.

Lot’s ‘o fun to be had in 1845. N2O is a gas gas gas, not unlike
The Overnight Open Thread.