My statement was short, simple and logically unarguable.
The question, though, is - DO you need to have lunch? If not, then you do not need to have lunch.
Do you need to earth a backbox? No. Therefore you do not need to earth a backbox, so saying you need to earth a backbox is incorrect.
The question, though, is - DO you need to have lunch? If not, then you do not need to have lunch.
Do you need to earth a backbox? No. Therefore you do not need to earth a backbox, so saying you need to earth a backbox is incorrect.