I just did that 2 days ago mixing cookies & I had the shield on. I had flour everywhere, including on my toes. My husband, being the great guy he is, cleaned it up for me.
On another note he told me this morning that peanut butter cookies help with nausea & if he eats 2 cookies every 20 minutes he feels better, LOL. He wanted to know if I would make a 2nd batch. I do a double batch anyway, so it'd be a 2nd double batch. Men!!