I've been known to spread some on the door handles! Purple smoke (Haze?) in my case Nitogen Triiodide if I recall.KeithT said:That strikes a chord.
In the chemistry lab many eons ago to liven things up we used to spread orange crystals - potassium chlorate it think it was - on the floor and as the chemistry master walked around pontificating they exploded each time he trod on them.
Highly amusing to a class of 15yr olds.
Of course he rumbled us.
[h1]Not the wisest move to use the science labs as form rooms for the lower sixth. [/h1]