[Lance is honestly just really glad he takes this so well; he'd been concerned the solution would've been so obvious that Michael would've already thought about and had a reason why it wouldn't work, and that would make him angry.]

If they message you again you can either put your phone somewhere you can't see it, or write really scathing responses that you delete instead of sending. That can be pretty therapeutic.

[Lance may or may not do that occasionally.]

As for following you, that's more of an issue. Most people aren't going to bother, especially if you make it clear you need time to calm down; just tell them you're going for a walk, and then don't come back. If they do actually continue to follow you, however, you should tell them directly that you're worried you'll lose your temper.

[And the person will then, hopefully, back off. And if they don't, they've at least been fairly warned.]