Text: Be kind to animals printed in red on white background. Graphic: Full color picture of a rat biting a man's hand on white background. I used to have this one. I can't find it. I'll keep looking for it to add more information. If anyone has any information about this button, please share it with me. Google image search hasn't provided any results.
Museum Edit (email from a visitor):
Artwork created by Wally Wood (aka Woody), a comic book artist who drew for Mad Magazine and Marvel. More from the button series at: https://whosouttherecomics.wordpress.com/2020/10/26/halloween-countdown-iv-day-26/