bits / fragments / crumbs / filings / trifling / trivial / to condescend to
屑
=
尸
+
肖
:
Marie Curie (xi) and the little prince (肖) are frequently visiting a ghost (尸) in the elevator's bathroom (e4). The ghost is feeding on their dandruff (屑), therefore it's a win-win situation for all of them, but secretly they feel it beneath their dignity (不屑).