Caulking between tub and tile?

I think most everyone is hitting this square on, The inch or so that a tub seal rises is just part of the system. I would highly doubt any tub manufacturer fails to mention caulking the tub seam. Water wicks upwards, evaporates upwards. It is his call unless you have perhaps an allergy to black mold, mildew, other such, in which case you will suffer, and may have cause to legal recourse, as such critters will grow right up under there where you can't clean. Other wise, the landlord just has to look forward to rotting his walls and floors, and eventually replacing the tile , green-board, adjacent floor tile, and sub flooring, in as little as a year in some cases, depending on how much water gets up there. On the practical side, the guy probably would let you caulk it, or do it if you bought the caulk. If not, well hey splash it up, its his property.