This is kinda disturbing... I feel sorry for the kid. I'm sure he enjoys it to a point but 4 year olds shouldn't be in 'training' or being taught/told to 'focus, focus, focus'. It also concerns me that on the biketrials bit you're just telling him to Go. Go. Go Go. Where's the 'good job, well done Malcolm (smile, hug, pat on the back)'? Ok, so you want your kid to be the next Travis Pastrana but let him actually be a kid not just an extreme sports athlete in training.