I have three pet hates.
1. ground zero being in a rubbish dumping ground. I have ignored ones after finding I would have to hunt around trying to avoid broken bottles, dogs muck and other nasty things.
2. inappropriate things left in caches. superglue, lighters, lighter fluid, sweets, are a few things I have found.
3. Please let us know if there is a parking space nearby. I sometimes spend longer looking for a parking space at a start of a caching day then caching.