Should I Go Work Out Today, or ?

Hi, I am leaving work in 15 minutes, and I am planning to go to a community event this evening at 7 p.m. I had planned to go to the gym and work out for an hour, then rush home, shower, and rush to the event. However I just got a sudden burst of laziness. So my question for the forums is: Should I keep to my original plan and go work out for an hour? Or just skip the workout and go home at a leasurely pace and go to my event later on? Coming back to the gym to workout after is not an option, due to a long comute between my work city and my home city.

Thanks for your fast responses, becaue I'm leaving here in 15 minutes