What do you do when a scout or other unit is trapped another civ's borders and you're many many turns away from open borders (civil service)? Delete it? Declare war? It really pisses me off. I will admit to buying tiles to trap enemy units and sometimes to deny their scouts access to areas of the map i suspect may contain ruins/CS meet and greet gifts. Bonus if it's a tile with some resource - they all seem to cost the same now (within the same ring).