You might have heard of ships which are called Minesweepers, which are instrumental in finding mines in the sea....but I loved the idea of having a Mindsweeper:
Would this ship locate all negative ideas in the minds of those passing by?
Also, if you want a "waterline" rather than an airline, you could use this one:
remember, though, that "they" of Cathey might charge you well!
But if you want to have no troubles at all, while on your travels, then call this number: