It's unfortunately quite easy to do even inadvertently (not following dosage instructions) - doesn't take a lot. The reason for the rule though was to combat i

It's unfortunately quite easy to do even inadvertently (not following dosage instructions) - doesn't take a lot. The reason for the rule though was to combat its use in suicide attempts. They also have to be sold in blister packs here for the same reason, not the big bottles of Tylenol/Advil etc. that you get there (and we used to here) - relatively difficult to take several, requires more preparation than just chugging a bottle.