If you’re advertising your CCW class with a picture of a woman pointing the gun at her own hand as she draws, you’re not as qualified to teach that class as you believe you are.
If you see an advertisement for a CCW class that includes a picture of a guy drawing the gun from a small of back holster with his finger inside the trigger guard, that’s a class to avoid.
Don’t do unsafe things with deadly weapons.
Don’t model unsafe behavior for others.
Don’t excuse dangerous behavior when you see it, even (especially) when it comes from people you like on a personal level. If you really like someone, help them stay safe — and help them avoid inadvertently teaching others to be unsafe.