They're known in the industry as "blanks," and plenty of celebs avoid them at all costs.
"I’ve gotten everything from requests for signed memorabilia to concert gig offers to birthday wishes from strangers all over the world."
The singer was diagnosed with stiff person syndrome last year.
"He always shows up when I least expect it ― and I really should expect it by now."
Meghan Markle, Jennifer Aniston and more on how to get over heartbreak.
Video from the incident shows an item fly into frame and knock Pugh hard near her right eye during an photo-op with her cast mates.