Once there was an analyst (a mathematician who fiddles with their epsilons and deltas all day long) and his wife, who was angry with her husband for not paying her enough attention. So one day she confronts him and says, angrily, "whom do you love the most, me or your stupid epsilons?".
The mathematician lifts his eye from the piles of paper and replies, genuinely surprised, "Why of course, it is you, my dear!". His wife is pleased, but says, teasingly, "Then prove it!". The good analyst thinks for a while, and then continues "Alright, assume epsilon > 0... ".