It's kinda annoying that outbound customers (and pets) (actually customers in general) can bump into other customers.
The bumped customers may stop and just leave the shop. Just ago I was just selling like usual, then a worker came to sell me resources, but got bumped by a customer i sold an item and i lost te worker.... It actually happens a lot that customers bump into others and I don't know how to avoid it.
Customers come in and leave through the same door so the only way to avoid this problem is to wait to the entire shop is full and then empty it at once. But this would be a very stupid solution in my eyes.
So make customers unable to bump into others please.