Michael Ellis also says "While training an off switch is important (by never playing in the house) it will not work on all malinois."
French Ring and Rally-O are extremely different sports to aspire for.
Backup has a horrible off-switch, we've been trying to train it in for a long time and frankly it's not successful.
He can sleep at night nicely but the rest of the day.... Well... I have to put him in a down stay to get ANY peace. He will not, absolutely will not, offer a chill out and relax.
This is no exaggeration. This goes from this pacing and panting to occasionally dropping the toy, screaming, frantically attacking it and resuming the video. Honestly the most annoying part of Backup is the panting, that sound drives me up the walls some days.
http://www.youtube.com/watch?v=N5n_pxuT_kg
Needless to say this dog spends a fair amount of time in down stays, in crates, or in the yard but if left alone in the yard he'll bark and spin doing wall turns off the glass door.
See puppy version:
http://www.youtube.com/watch?v=FldK2wr5U1g (except now he knows how to spin and deliver a flyball turn off our doors, yay)
Sloan is actually more annoying than Backup in some ways, Backup can pace at a distance, Sloan can lay down and chew a bone but 90% of the time she's in your face with a toy for fetch.
Sloan however no long is crated at night because this became way too annoying.
http://www.youtube.com/watch?v=tqYAxSpqvvI
Of course Malinois can vary and they can get better with age, it will also be effected by what you want from your dogs, what your priorities are.
If these excite you and don't annoy you then think about it, but if these make you at all uncomfortable then I'd walk away.
The mals in the yard
http://www.youtube.com/watch?v=mDv2XsmQl98
The mals in the house
http://www.youtube.com/watch?v=7_qJ55n4-f4
Sloan needs high walls
http://www.youtube.com/watch?v=yLvBO_OGI94
Backup is annoying, again this is his version of off switch
http://www.youtube.com/watch?v=d5-R_A8g8cg
Oh look, it's backup pacing again, this time with trash in his mouth. He never gets in the trash but if it's on the ground it's free game as a toy.
http://www.youtube.com/watch?v=-Kd0eAZo1w8
I made an attempt to take a bath, Backup decided it was time to play
http://www.youtube.com/watch?v=YEkba4qNI9E
Nothing stops them
http://www.youtube.com/watch?v=D1rxRCkSObQ
For a long time we used what we called "doggy jail" when we wanted to chill and watch tv
http://www.youtube.com/watch?v=GkdLzd9aT2M
Sloan isn't video'd as much as Backup for silly things but she's still similar, just a quieter busy who is much easy to focus and work
http://www.youtube.com/watch?v=8qZtfl2ODtU
Backup at work "collecting", he like many belgians has an obsessive oral fixation
http://www.youtube.com/watch?v=XGfsDv-x_ug
Sloan doesn't like to OUT, it's the bane of her existence
http://www.youtube.com/watch?v=GkD7mQ1iWlQ
Sloan is a PITA too (She keeps us laughing though
)
http://www.youtube.com/watch?v=SZf3uUs64LM
She's persistent
http://www.youtube.com/watch?v=zyvc_4af_u0
A normal Backup scene
http://www.youtube.com/watch?v=O_pK5dNvcoM
Again... normal Backup
http://www.youtube.com/watch?v=Pku6nvDEVtA
Sloan V the broom
http://www.youtube.com/watch?v=8qkHcTNwHuE
Sloan
http://www.youtube.com/watch?v=qSZc3rWtmZM
Backup coming home
http://www.youtube.com/watch?v=-nw19QoTOrk
Sloan hates wipers
http://www.youtube.com/watch?v=XedVeDGLS0w
And that should hold anyone over.