What event do benvolio's lines from the opening of act iii, scene i of romeo and juliet, hint at, or foreshadow

Benvolio's lines from the opening of Act III, Scene I of Romeo and Juliet, suggest that in that scenario Benvolio and Mercury can meet with the capulets and that encounter can generate a fight between them.

Here below is the opening of Act III, which proves what I said above:

"BENVOLIO : I pray thee, good Mercutio, let’s retire.  The day is hot; the Capulets, abroad;  And if we meet we shall not ’scape a brawl,  For now, these hot days, is the mad blood stirring."

im not entirely sure, but i think the answer is listing