Moisturise Or Not To Moisturise...

was talking to my colleague about hand moisturiser...

D: you know ah, after applying moisturiser to my hands... when i go toilet, wash hands and the moisturiser will be gone, right?
C: yalor...
D: then wasted leh...
C: yalor... don't go toilet lor... or don't wash hands lah...
D: *roll eyes*