A polarized electrolytic will conduct DC current in the opposite direction, possibly damaging the part. Non polarized caps are often used for AC coupling, but film caps etc. are not usually available in larger values, as the size grows. Back to back e'lytics work, but remember that the net capacitance will only be half that of either part.
What all this means is that you won't have trouble if the (AC plus DC) voltage on the cap never reverses! Decoupling between stages in a linear amplifier might be do-able with a polarized cap, if the signal at the collector (Drain if FET) is biased at a higher DC voltage than the base (Gate if a FET) of the next stage. The voltage on the part would then be DC, with a superimposed AC; if you can keep this voltage always positive, you're in good shape!
P.S. Curried food is not so bad, in my experience....