Darktooth there is no way to be sure. Go to blockbuster rent Willy Wonka, Who framed Roger Rabbit,and Alice in Wonderland. Stock up on laughy taffy blow pops and skittles.Then administer one tab orally and get back to us.
Unless they are tripping nuts all the time in your home I wouldnt worry.. That is hardly enough to deal.. maybe a couple friends got together and bought some.. and lsd is very low priced, probably 3$ a hit or something..
Im sure your collection of off-beat porn and rotten.com images is worth more than what you found..
Drop a tab with a pint of orange juice and watch house of 1000 corpses....