I think you are being a bit harsh Ian. There are many contributors to this and other bulletin boards who do not have the best command of the written word. With experience through my family with genuine dyslexics, I am fully aware that people who find it difficult with writing or grammar are very aware of their life disadvantage, and it can be a tremendous step of courage and self belief to take the bold step to put their words into writing on a public forum. To be ridiculed in this way is, I feel, totally out of order. At best it will give you, and only you, a momentary chuckle, at worst it would be embarassing for the recipient, and the loss of one or even more contributors to these forums in the future.
I feel an apology is in order.
Safe and happy cleaning:)
Ken