Staff got my order wrong, but no big deal, figured I would just exchange it. Lady who took it back grimaced and told another staff member to make another one, saying "he ordered sausage instead of ham" in a tone that implied it was my fault somehow.
No need to get defensive with your customers, I wasn't angry or anything.
There are a few power outlets scattered around, but they should really put some under the long counter tables like some other locations.