There’s actually a flag code, and a lot of common things are against the code, but we don’t think of them as disrespectful.
Holding a flag horizontally over a football field, flags on clothes or athletic uniforms, clothes made of flags are all against the code.
Mostly that was all followed until the 70s, but good luck getting the red necks to give up all that stuff now.
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"Everywhere I turn, here I am." Susan Tedeschi