The garbage men tried to take the excavator that is in my yard for my new in ground pool construction. Can I sue?

Yes

Unlikely, since they didn't actually take it. But can I have their number, because I can't get my trash guys to pick up an extra piece of hosing.

Well, you can't really sue based on intention. So, perhaps you can work on your story a bit more and we can look at it then.

Anybody can sue anybody for any reason. Winning is problematic, however

Oh no the garbage man troll again muted