Hypothetically . . .

Would it be a bad thing to go on one last adventure with roommates before getting married? Hypothetically, would it be bad if that adventure included graffiti? Would it even be considered graffiti if you were to spray paint an uplifting message, like "LOVE"? Or would that be considered city beautification? And, hypothetically, if there were already graffiti on the side of, say, a dumpster, would it be wrong to graffiti over it? Or would the first graffiti cancel out the harm of the hypothetical second graffiti?

This is, of course, all hypothetical.