Ok, so you all know that Sully is *usually* an extremely well-behaved, good natured, well-trained dog.
WELL.........Houston, we have a problem. EPISODE #1 
Sully and I often go for walks on the beach. The other day, I let Sully off-leash for a few minutes b/c he loves sniffing the waves and chasing seagulls. That was all fine and good until he, umm, marked a towel belonging to a surfer who was on the way to get his towel!
I can still see the whole thing in slow motion, the surfer-dude, complete with surfboard and wetsuit, saying
"noooooooooooo" and sprinting toward his towel. I am coming from the other direction, also sprinting and saying
"noooooooo, Sully, nooooo!"
So, that was the end of Sully being allowed off-leash on the beach, lol. Can we say EMBARASSING?!!!
EPISODE #2.......as if the first one wasn't bad enough.

On Saturday evening, we took Sully to the beach while with friends to have our pictures taken as a group with the sunset, etc. on Sullivan's Island by the lighthouse. A six year old girl and a two year old boy come running up to Sully with no fear wanting to pet him. Sully loves kids so of course I allowed it. After a few seconds of petting, Sully sniffs the 2yr old's leg and um, LIFTS HIS!!!
Horrified, I snatched my pooch up so quick I'm sure he didn't have the chance to get any pee out but GEEZ!!?!!?!

He was on leash and I was less than a foot away even!!!

I'm done with this! Sully was neutered at 6 mo. old and he's 1 yr. 8 mo. old now! He never even marked BEFORE he was neutered and I can understand a bush or tree here and there but this is ridiculous.
Is there a way to discourage this bad habit or are belly bands my only option?! (He never EVER marks in the house, tho.) And if you don't have any advice for me, yeah well go ahead and laugh 'cos it is pretty funny. Bad, but funny nonetheless.