EO: Mamma, if a boy golden retriever marries a girl dalamayshun, then can they have babies?
M4 (anticipating question about mixed-breeds and hybrids) : Yes babu.
EO: Can the boy dog also have babies?
M4 (realising it was straying closer to sex ed territory): Errr, no...
EO: Then in Lady and the Tramp, how come Lady has babies who look like Tramp?
M4 (wondering how to explain genetics to a 7-yr-old): That's because Tramp is their father naa? Don't babies look like their parents?
Silence from the other side of the wall (he was in his room reading and contemplating while I was in the sitting room). No further questions. Satisfied with my answers, my son continues reading, while I heave a sigh of relief that the questions-that-could-have-been-but-weren't, did not crop up.
Safe...for now. But how much longer? *shudders at the mere possibility*