1) Stop, take a deep breath and don’t get angry.
2) HAHAHA JOKING. GET ANGRY.
3) Consider going all Hulk on them
4) Talk smack about how much the name actually sucks in hopes that they will believe you and give you your name back
5) Ask them politely not to use it
6) Bully them into not using it
7) Cry until they feel so bad they say they won’t use it
8) Threaten to end your relationship with them
9) Make other suggestions in the hopes that they will pick something else
10) Who cares if they’ve stole it? Your baby can rock it better anyway!