I started the day with no internet service.
With that one small glitch my plans for the day were delayed but thankfully not fully thwarted. I readjusted my schedule to include a service call to my provider.
This led to Poor User Experience Number 1 and revealed my mis-founded expectations that an international corporation would have a functional automated call system. It turns out that automation can be really poorly done.
Not really the biggest headache but it has left me exploring paths that I wouldn’t normally follow.
Fast forward three hours and I’m leaving the public library to find some lunch. I head to the first fast food restaurant I can find, wait patiently for my turn to order only to be turned back when the counter person didn’t recognize the next in line (me) to be me. Had I failed to wait at the proper place? Did I not look ready?
Poor User Experience Number 2. 
User Experience inflects our every day. With every click of a mouse and every door that opens, we humans experience the world through our actions and thoughts, and the reactions and behaviors of those responding to us.
What is User Experience really though? A twitch of a muscle with an answering flash of recognition.
Most user experiences are latent experiences, invisible tacit expressions of the interaction we are performing. Very little of that experience is captured in your memory—you may remember fleeting emotions, words or actions but the majority of what you thought and experienced is dumped relieving the cognitive load of your memory banks for things that are more important. When things go right we ignore them—the experience is what we expected and no further thought is given.
When things go wrong, like they did for me this morning, these experiences impact and disrupt your cognitive load until you can emotionally and intellectually solve/dump the problem. I’m hypothesizing that this is why we see so many negative responses in customer feedback.
Hmm… more to ponder.