Hello everyone. Recently, I came across some plain white blotter my cat brought home. Its pretty typical blotter, except a purple streak. Its very similar to the way ink looks on note book paper, when a drop of water hits it. Smeared may be the word. Is anyone similar with this, or if it is some indication as to what has been laid on the blotter? I've given my cat several warnings to be careful if he doses. Any help is appreciated.