You walk among Titans.
And that is a good way to get crushed.

What does that mean.

It means that when you are in an environment where you are interacting with Titans you are more likely to get crushed (hurt) by them.

If you live with a longhorn in your bedroom, you have to expect to get gored.

When you are in a thread with BD, you have to expect that you will get crushed.
Hurt.

You're walking among Titans.
And that's a great way to get stepped on.