I swear that smoke alarms exist only to comment on my cooking. Last week I burnt some sugar water I was making to feed the hummingbirds [1]. There was thick smoke hanging down to within a metre of the kitchen floor yet the smoke alarm was silent. This evening I took the rack of lamb out of the oven and the alarm started wailing about the invisible whisps of smoke therefrom.

[1]1/4 C sugar, 1 C water. Bring to boil and allow to cool. Do not forget about it for half an hour, thus allowing it to burn into a crusty, foamy, sticky, carbonised toffee-like substance. Your pot will never be the same afterward.