Not quite an appropriate analogy but close. I'd add, each time you used Viagra, the effects would be a bit shorter than last time until eventually Viagra doesn't work anymore no matter how much you take. The govt doesn't "make" money. It borrows on the backs of people. So it's like all of us throwing money into the market to make money on the market....huh?
See these green candles from from under 9780 to around 9980? 100 point reversal and then a 100 point gain. That is what one calls a QE injection or basically 2 pills of 100mg Viagra!!