How would you determine that drinking tea doesn't cause the intersection between the queer and the straight set?
After all, S ∪ Q = Q => S ∩ Q = S
Also, I would argue that your preposition S ∪ Q = Q is false because Q ∖ S = Q. And since we know that S ≠ ∅, Q and S must be disjoint sets or else Q ∖ S ≠ Q.
Unless Q and S are sets which cannot be formulated in ZFC, the union of Q and S cannot be Q.
"BRB right back" doesn't look that bad tbh be honest.