[Loughla]

The only time to avoid command words like should is when the person could conceivably see them as a command. Because then you're being a dick.

Otherwise, if someone wants to take the time to dissect meaning from add-on meaningless words like should in a sentence, they should find something better to do with their time. Or just ask instead of being a moron.

[milesrout]

How are you being a dick?! There are loads of reasons why you may want or need to instruct someone to do something. I prefer the imperative mood. It is more direct. "Sudo make me a cup of tea".