Back Against the Wall

[keannu]

Source : https://www.idiomsandslang.com/have-your-back-against-the-wall/
[FONT=&#44404](Have One’s) Back Against the Wall[/FONT][FONT=&#44404]Definition: [FONT=&#48148]Have few choices, be cornered[/FONT][/FONT][FONT=&#48148]
[/FONT][FONT=&#44404]Example: [FONT=&#48148]I’m really sorry I had to lay Jason off, but my back was against the wall—if I didn’t, the company would have shut down our whole division[/FONT][/FONT]
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1.This seems to mean that one is cornered in hot water. Do you use this a lot?
2. The underlined "if I didn't" is used wrong, to indicate a counterfactual conditional, it should be "If I hadn't", right?

 

[Tarheel]

1. One, you mixed up your expressions. Two, I don't think I have used it, but I understand it.
2. That's right.