This glitch gives you max money from the first Apocalypse Genki Mission after you acquired your first safe house.
The first time you bring the enemy towards the pool you might have a 50/50 chance of failing the mission or performing the glitch but if you fail the mission the first time, then the glitch will succeed the second time.
Once you've done the glitch, run like a madman towards to the goal since they will be a brute chasing you. When you get you will be reward with 300mil+ money but you will hit the cap of 20mil.
This can be done as many times as possible if you were to somehow run out of money which is very unlikely. Otherwise have fun with Saints Row the Third! :D