As they say, let well enough alone. It is not always necessary to do something nice to people.
In case you don’t believe it, check out those attempts to comfort strangers that went disastrous.
1. Need food or need luxury?
2. Double accusation
3. I don’t like your hitting on me
4. Knocked-out teeth to save slippers
5. Dangerous ticket
6. No flirting
7. Apples for homeless
8. I brought her flowers and got fired
10. Moved a fallen tree, ended up in hospital