According to US law, flying the flag upside down is only allowed when trying to signal "dire distress in instances of extreme danger to life or property". Like, for example, if you're on a boat and it's on fire and sinking.
Some people fly the flag upside down to protest the US government or its actions. This is technically illegal, but generally not enforced. Additionally, many Americans, especially military veterans, tend to view such an act with hostility.
The American Flag flown upside down is a cry for help. It was mainly used on boats before the era of radio.
None! Unless under duress.
...No.
No, that's actually disrespectful. Flying a flag upside down is a sign of distress. For instance, if you were on a sinking ship, you should turn your flag upside down to signal to other mariners that you are in distress.
When you are in distress and need help.
Etiquette dictates that a national flag should never be shown upside down. It is a sign of distress to fly a flag upside down.
Flying an United States Flag upside down is a recognized distress signal.
You should never fly it upside down
The Green Bee Eater can fly upside down.
If you are in danger or distress it is
No, the first amendment allows you freedom of speech. It is considered a distress signal. So if you aren't in distress, you may get a lot of heat from others, particularly the veterans that risked their lives.
never fly it upside down, do let it hit the floor, and don't burn it