When there's no time for training, your only choice is the training montage. 

And when you need to indulge your love of movies that feature training montages in under four minutes, the only choice is to watch this training montage montage, set to Joe Esposito's 'You're the Best,' from the original hardcore Ralph Macchio version of 'The Karate Kid.' Wax on, bro. Wax on.