Слово "pitfall". Англо-русский словарь Мюллера

Holes, hollows, pools, pitfalls, and other black menaces to the wayfarer were vanishing fast, and a gleaming carpet of faery was springing up everywhere, that looked too delicate to be trodden upon by rough feet.

Their speed was slow, however, because pitfalls were somewhat common, and had to be guarded against.

  He had remained motionless, as if feeling himself surrounded by pitfalls.

Slang is the great pitfall.

for future restauranteurs to figure out how to avoid all the pitfalls.