My communication ideal includes being able to listen to somebody and respond to what they are trying to say. Like most ideals, my practice falls somewhere between perfection and total apathy. It makes for a good exercise to apply to the shoulds of the world.
If my neighbor saw me pruning my hedges, and in complete ignorance over what hedges they were, why they are planted here, and why I am pruning them this way, told me that I should prune them in a particular way, it feels like someone walking up and blowing sand in your eyes. But what might she be trying to say? Maybe it's something like "I am proud of my standards for styling hedges, and I would love to share them with you." Still a little arrogant, but I think a well-meaning person could find a friendly response to that.
I think most well-meaning shoulds leave the problem solving to the listener. "You should include this information when you make a decision, and I hope the information is useful. "
The shoulds that include the message that your mind is already made up, that you are the expert and the listners are waiting to be educated by you, those are the shoulds nobody likes. If you haven't listened to anything I have to say and you're explaining how you came to the correct conclusion, you are here for a TED talk or lecture where my role is to listen and applaud. However if you try to hear what they're trying to say, it's probably that they want some sort of connection with you, or they want recognition and appreciation for their knowledge. Something we all experience.
Problem solving is closely tied into this. I myself have a strong problem solving nature and have to suppress it at times. My problem solving nature is great while I'm at my job, but if I keep the same behavior during family life, I won't be able to give my attention to the people in front of me. Staying in problem solving mode, I'm sure I would should everyone I meet because every inconvenience and discomfort and worry is just a problem that can be solved, and I'm pretty good at finding solutions to those kinds of problems. It was a big step in maturity to learn that sometimes I need to exist in a space without solving problems.
Being a guest in someone's house is a perfect example, they're inviting you over to enjoy your company and help you feel accommodated. They're not hiring you as a consultant to solve all the little problems in an inefficiencies of their house, so if I'm invited as a house guest and I start dropping shoulds on everything I see that I would have done differently, I probably won't be invited back, as others have expressed.
In fact, it is plausible that the word "should" might be used for one's one personal gobbledy-gook exclusively. Maybe I could say "I really should eat more cookies" or "I think I should take more naps."
I was suggested by a professional looking out for my mental health to reduce or remove the word "should" from my internal vocabulary. "I should go tend to the sunflowers before breakfast" becomes "I COULD go tend.." big difference internally. Especially if you're like me and you could end every day with a long list of Todo items that you didnt make time for. It's not possible to do it all, so be careful with the authority you give to certain tasks by using the word "should".