When you are a Christian there gatherings that you can go to, where people talk things that can bring down your spiritual level. You can say you did not engage in the topics but your ear is exposed to the toxic utterances.
2 Corinthians 6:14 Do not be unequally yoked together with unbelievers. For what fellowship has righteousness with lawlessness? And what communion has light with darkness?
I am not insinuating that you must not have a relationship with unbelivers but guard what you hear.