FI did NOT want kids at the wedding or reception. We invited, obviously our ring bearer and flower girl and that was about it. When we addressed invites we made sure we addressed to who we wanted to attend (didn't put and children or their names. Strictly Mr./Ms. when applicable).
Just got a RSVP back from FI step cousin. They put Mr. and Mrs.__ ___ and son.
Their son is 2. FI is not happy.
How can we tactfully handle this???