Once, I was looking outside at my lettuce growing. It was all wilted in one direction, but not in another. There were three planters, so I thought that it was some tiny bugs or something.
Then someone in the house at that time came to me and said that he might have accidentally wilted it. With mosquito spray!
It was quite surprising to me, though I realised that on that mosquito spray:
There were no ingredients labeled except for the 'Active' ones.
Probably had chemicals in it.
So I think that an important takeaway from this is that you should never use mosquito spray on plants because it might kill the plant.