Q. Two individuals face each other at a bathroom door, one leaving the bathroom and one entering, who has din kadima and goes first?
A. An entrance to a public bathroom, public bath, steam bath or similar, does not necessitate or involve honouring people. Although one may argue that the fellow entering a public lavatory should have priority, since he may be transgressing the prohibition of “ba'al teshaksu” by constraining himself, still Horav Shlomo Miller Shlit'a maintains, that the conventional wisdom and accepted behaviour of exiting and giving space to the ones entering, trumps.
Rabbi A. Bartfeld as revised by Horav Shlomo Miller Shlit'a