Have you ever loved someone unconditionally?

Its a difficult one that im not quite sure of the answer. As my two grown up children i love more than anything in this world. But.to say unconditionally im not sure because if one of them were to kill someone innocent or touch a child indecently or some similar disgusting crime then i think unconditional would fly out of the window. Thankfully my kids seem great people and seemingly dont have a bad bone in thier bodies. Good question though.