Microchips are very useful in finding a lost pet. There have been numerous instances where a cat is identified through a chip and reunited with their owner after traveling many miles from home. http://en.wikipedia.org/wiki/Microchip_implant_(animal)
The bobcat is twice as big as the domestic cat, but smaller than the lynx. Many believe they evolved from the lynx and there are as many as l2 different species. http://www.bear-tracker.com/bobcat.html
A very small amount of sweet tasting antifreeze can kill your pet. Appearing to be drunk is the first sign. Contact your vet immediately! http://www.2ndchance.info/antifreeze.htm