Last Wednesday my in-law's decided to have their Labrador put down. She had cancer for about a year and up until the last couple weeks she had still been "happy" acting like nothing was wrong.
Today I found out they put down their oldest Samoyed. She was in pretty rough shape, couldn't hear or see very well anymore and she was passing blood and had stopped eating the last couple days.
They have two dogs yet, but I hope they're done visiting the vet for a while.
So if you have any four-legged, furry babies give them a big hug every day because you just never know how long he/she/they'll be around.