When a child is told what they're doing isn't a very good idea, some may listen and stop it.
However, some kids, on the other hand, completely ignore the advice - like this girl playing with a water hose in the garden.
She started off fussing around with the hose near the watering can, then decided to bring it up to her face to have a little drink of water.
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Of course her nan, who had already envisaged what was going to happen, repeatedly told her it wasn't going to be a good idea.
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But instead of stopping her grandaughter, the nan decided to let her learn from her own lesson.
And then this happened.
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