Trump is a bully. He instigated mobs to behave like bullies at previous rallies. This time, some folks showed up to react to bullies the only way to react to bullies. Bully them back. Now, Trump and his bullies are acting the way bullies act whenever people stand up to them and give them some of their own medicine. As can be seen in many of these posts, they whine and whimper and cry about how they have been treated unfairly. Bullies aren't tough guys. They are wanna be tough guys.