Is there any law to protect a person(s) from working a certain shift if married, have children, ect?

Typically, no. There may be some protection if a medical condition of a family member were involved in the necessity of that schedule. While this...

As with a lot of answers, it depends. Did anything change - was the "bad actor" removed? Did you suffer back pay damages? Is the owner making you...

What should I do?

You can make a complaint with the Texas Workforce Commission under the PayDay Act.

Can I be docked pay if I'm salary exempt and was short 3 hours Monday and 2 on Tuesday for Dr's appointments?

You shouldn't be docked. An employer docking a salary exempt employee can support an argument that the employee is improperly classified and and...