I have a pet guinea pig, and discovered that he loves orchids too. Too much in fact!!
When I water my orchids I usually place them on a towel on the floor a few minutes to let them drip before putting them back in their trays.
Well Snoopy gets really curious (he runs loose when I'm home) and I often catch him cautiously creeping towards the orchids. He'll see me look at him, then scamper away. As soon as I have my back turned he creeps back to the orchids. Sometimes he'd try to get a bite from a leaf, and a sharp 'NO' usually disuades him and he runs off to plot his next attempt.
Being a smart little devil, he's modified his technique lately. Now he nonchalantly gets within a foot of the orchids, then makes a mad dash, grabs a leaf and RUNS! The larger plants just end up tipped over and he gives up, but yesterday he grabbed a small orchid. Result? Orchid was jerked out of the pot, media was strewn all over in the wake of the fast moving piggy, much like a comet tail, and then he desperately tries to get his plundered plant through the narrow doorway of his cabin...
The sight was too hilarious, although I had to clean up the mess and repot the poor victim.