Before you commit to an agreement by purchase or otherwise, please read the fine print!
On the nightly news I heard a story about a couple who had a refrigerator with a malfunctioning ice maker. They had purchased, an extended warranty at the checkout at their local appliance shop. To their dismay, the extended warranty did not cover the ice maker.
Think about it! At the checkout, the cashier asks, "Do you want to purchase and extended warranty?" You might ask, "What does it cover?" She says, "It will replace your item if it goes bad in the next two years." So you say, "Sure, sign me up!"
If you don't have time to read the fine print, then don't agree to purchase an extended warranty on any item. It is not a smart choice!