For a while there, Gul Dukat was starting to seem like a pretty nice guy, despite his role in the occupation of Bajor. That all changed, and I think I know why.
In 'Indiscretion', Dukat and Kira are working together to find survivors of a wrecked ship. When they stop to rest, Dukat sits on a rock and has his bottom pierced by a crystalline shard.
Kira laughs, pulls it out, and hands him a dermal regenerator to close the wound.
I posit that it was Dukat's accidental sealing up of his asshole by the dermal regenerator that soured his mood.
I may be in a bit of a silly mood.
In 'Indiscretion', Dukat and Kira are working together to find survivors of a wrecked ship. When they stop to rest, Dukat sits on a rock and has his bottom pierced by a crystalline shard.
Kira laughs, pulls it out, and hands him a dermal regenerator to close the wound.
I posit that it was Dukat's accidental sealing up of his asshole by the dermal regenerator that soured his mood.

I may be in a bit of a silly mood.