: Although (AFAIK) the possibility has not been discussed, I consider it
: likely that, if indeed he got it by brushing his teeth, several squares of
: windowpane might have been applied directly to the tube of toothpaste,
: under the cap.  The gelatin would have dissolved in short order, rendering
: it undetectable, yet the full dose would be efficiently delivered the next
: time the tube was used.

Clams don't have much operational freedom or imagination so if they did
it one way before, they likely did it the same way next time.  And, in
fact, there was a report some time ago about pulling an LSD in the
toothpaste deal on a psychologist in London a long time back.  So, the
most likely mode of administration was the toothpaste.

Keith Henson