And they insist:
"At In-N-Out Burger, we've communicated with our smiles since 1948, and a smiling Associate helps to set a warm and inviting atmosphere in our stores," Warnick wrote. "We believe that wearing a mask literally adds a barrier to communication — much of which is nonverbal — and promotes a more distant and disconnected environment." ~ Denny Warnick, CEO of In-N-Out Burger
[https://www.sfgate.com/politics/article/in-n-out-finally-comments-on-anti-mask-policy-18252998.php]