Reasons to Send your dog to a shelter

Honestly, some of the reasons I've heard from people are completely insane and could be fixed so easily. Some like- "Oh we weren't expecting him to get that big!" or " She's just too energetic." or " Too much hair!" make me soo angry! They should have researched the breed, I mean, if you get a great dane, duh it's going to get big.

I'd like to hear input from others (: