on second thoughts in a sentence

Examples

1. On second thought, maybe that isn't a good sign.
2. On second thought, it must have been something else.
3. No, on second thought, perhaps its better placed here.
4. On second thought, it all makes good sense, too.
5. On second thought, that would just make them hungrier.
6. Which isn't such a bad thing, on second thought.
7. On second thought, she probably already has a copy.
8. On second thought, we'd better be careful about that.
9. On second thought, make them the height originally specified.
10. On second thought, the answer seems obvious : money.