Would like to add the following verb to Collectors, Stills, Icons, Gnomes, trees in my front yard, Machines, and pretty much everything (those would be highest priority for me).
"Lock" -- same as "Drop", but I'll be the only one who can pick up / poison the item (alternatively, brings up a menu asking "Lock to you, your keyholders, or your friends"?)
Verb works on my street, my house, and my backyard, at least. Also, in group locations, but there can be overridden by other group members as appropriate (or "group members" added to the above list as default).
Lock should not be the default action.
--SchWM