I've always liked new shower curtain smell... and puppy breath. No I have never used illegal drugs, model glue, or canned air.(but I did smell my ditto paper when the teacher gave it to me still slightly damp from the ditto machine.)
Everyone who is at least 26 years old nod and smile because you got those purple and while ditto papers and YOU sniffed them. You also probably avoided taking the one the teacher's licked finger touched.:)