nope, the *little tiny* SMT caps are usually solid, and can't leak.

The caps I replace are the aluminum can caps, which usually come in two sizes: 47mF, 16V and 1mF, 50V. I also sometimes replace the bigger axial-lead electrolytics, which I have noticed leaking sometimes. IIRC, they're 470mF and 220mF at 16V.