If kids are supposed to be so rough and tough, no one should be shitting their pants if a kid experiences a few minutes of altered consciousness. Hell, it was probably a learning experience for him. If not, then it was pretty much like waking up groggy and confused from a dream.
To imply the kid should have to tough out a painful procedure just because he might get "high" afterward reeks of the War on Drugs fear mongering.
Besides, getting high isn't the worst thing in the world! LOL