I rescued my 4 year old cob Harry a few weeks ago now and I have tried several times to lunge him.
I tried whirling the line and using a whip and using my voice, I have tried tapping him with a crop, tapping him with the whip, cracking the whip, hitting my boot with a crop, hitting my boot with the line.
He is very bombproof, nothing scares him except hoses and lorry breaks.
I've tried letting the line really long but he just stands there, I have tried having it very short but he just looks at me.
I don't lunge with tack.
I lunge in the outdoor arena that I ride in and that he has been loose in a few times.
I always lunge him before he gets any other excersise but I tried once doing it after he was out in the field and it made no difference.
Its not essential that he gets lunging but its just I injure myself that often that it would handy if I could lunge him instead of riding him and he needs worked as often as possible to get his muscles back!
He probably has never been lunged before as the guy I bought him off more than likely broke him in and he didn't know what lunging was!
He's not bad, he doesn't do anything wrong he just stands there!
P.s I might try lunging him with someone riding him its just hard to find anyone willing at the moment.