I've never done that no, made me giggle a little! I did once feed a white hamster some red pepper and she merrily stained herself all over with it - took a while to fade and looked quite macabre, but I watched her do it so I knew what it was.
I did a similar panic though with one of my guinea pigs, Rufus. I thought he had a large hard growth in his mouth and was panicking about that whilst my housemate calmly picked him up and took the "growth" out of his mouth - it was a small conker that Rufus had managed to jam onto his tooth, silly boy.