regular breaks help - Guto my Welsh Terrier insisted upon a stop and walk about every hour or so in his younger days.I recall on trip with him from Caerphilly to see relatives in Taunton. This was in the days before the second Severn Bridge. There was a hold up on the bridge, and it was left foot - right foot all the way over.
In the middle of the bridge (1.5 miles) the traffic stopped completley ( presumably whilst the wreckers removed the culprits. Stopped completly the Dog wanted out. Fine, traffic not moving, out he goes on the lead (leash)
I can happilly say that Guto is one of the few , if not the only Dog to urinate on the "fast" lane of the M4 motorway (freeway) and live to tell the tale.
But joking apart a break now and again seems to do the job.
Anyway I'am about to have my usual nightly battle to reclaim my bed !!!
(Sounds of Growling and snarling off screen.)
Gareth