Boss brags on FaceBook about firing a 5+ year employee because they wont come in on their day off to cover someone else who called in

Screenshot Sunday because it's Sunday where I am – also not my content I came across this in a FB group I'm in. https://preview.redd.it/aktlhoo39k6a1.jpg?width=1179&format=pjpg&auto=webp&s=1a038195b2f5b7b3465e7a7b0cee225127a91658