I had to try and stop my mouth from when I first sat at the dinner table with DH's parents...very very hard to keep my face from contorting when rice goes flying across the table...and I can't help but squint every time I hear that god awful smacking sound from mil's tongue ..especially when she eats cheese...

I think it could give me premature wrinkles

but the thing is, my dh and his brothers and sisters chew with their mouths closed..