Tips to handle toddlers piercing screams

[SwivelHips]

DS 2.5 yrs has started the most horrendous high pitched screams, he can talk perfectly well but t times when he's frustrated he screams. He's probably seen me jump 6 foot in the air and it's now becoming more frequent. I've been ignoring it but this isn't working. Maybe it's the excitement of Christmas TIA for any suggestions

I have this with my 20mo twin charges. They set each other off and think it's hilarious.

I'm not much help but I do think they do it our reaction- it terrifies me but I've tried to stop reacting. I'm sure they'll grow out of it crosses fingers