camel's nose
metaphor for a situation where the permitting of a small, seemingly innocuous act will open the door for larger, clearly undesirable actions
en-GB/kæməlz ˈnəʊz/
en-US/ˈkæməlz ˈnoʊz/
metaphor for a situation where the permitting of a small, seemingly innocuous act will open the door for larger, clearly undesirable actions