@MichelleVL, My cat rubbed himself on the floor once after I gave him his bitter medicine through a syringe, so I'm not sure if he was horny or he was "rubbing off" the taste of the medicine! Lol. I haven't had any of my pets microchipped yet, but as per my research, here in the Philippines, as of 2007 the cheapest microchip price is only $17, and some vets charge up to $22. It's quite cheap in here! I wonder why it's so expensive over there.