Might I offer the following?
If you are in line at a store, a coffee shop (as I just was), or anywhere else in the universe...
And someone in front of you in line finishes their transaction and moves to find a table...
GET OUT OF THE WAY!
Honestly, this is far beyond my usual fussiness concerning personal space and the demise of manners.
I know a guy who knows a guy who, in order to make the point that car motorists should share the road with bicyclists, built himself an armored cage with protruding metal spikes that would attach to his bicycle when he rode the road.
I'll go borrow me one of those Gwar outfits if I have to, but GET OUT OF THE WAY!
And, if you must be on the phone, use your Church voice. Your inside voice is still too loud.
And turn the volume on your phone down below Armageddon level.