-monkeypuzzle
is like climbing a sharp pineapple, its a pain to clean up( the branches shed their "monkeytails"just a little too big to manage with a rake) and bucking/chunking the wood is like cutting into a barrell of elmers glue. ( not to mention the wood is HEAVY)
-lombardy poplar
smells like a$$, PITA to remove when dead and tall in somebody's backyard, usually next to wires. heavy, wet wood
-big overgrown pin oaks can be a chore to prune, cut a big branch loose and it doesn't move, then you have to wrestle with it/ dice it up in the canopy to get it free(same story in elms)
-hawthornes
-fruit trees that are overloaded with fruit, and cleanup of the fruit is required.
-previously topped silver maples
etc. etc.