If I am Camping I leave my hitch in and locked! I do not want it stolen.. When we go site seeing I cover the greasy ball with a bright yellow tennis ball,, If someone busts a shin on it I am sorry for your injury but I have done all I can to warn you! I was at a small coastal town and parked near a popular sea food joint,, Parking lot was tight! When we come out I noticed a note under my wiper,, It said "Thanks to your inconsiderate laziness my child ruined his shirt from the greasy hitch you left on your truck"! I kinda chuckled at first,, but that would have meant that your little germ bugger had to have taken or knocked the tennis ball off and rubbed themselves against the hitch ball!! I mean really?? How is that my fault? Now that kid is going to grow up hating campers!! Oh,, and I use synthetic grease!! Not going to wash out......