@blehb For gentle scenarios, existing relationships such as friends or lovers are easier for me to explore. In those cases, I like the idea that despite growing or shrinking, the other person is still the same otherwise.
But it can also be interesting to see how two strangers would react to size differences. For example, a man riding home on the subway and finding a shrunken woman hiding underneath one of the seats. How does he react? How does she? Can they learn to trust each other? I like going through those questions, regardless of whether the scenario is gentle or cruel.