Beware of being laughed at by leading colleagues.

Yes, not good. You should think about it. If you care, others will laugh at you more. If you don't care, others will find it boring. For example, because people like to join in the fun, just like children, the more you play with them, the endless frolicking will accompany you. If you stay serious and stop frolicking, they will feel bored, so when you encounter embarrassing things.