Fortunately, or should I say, unfortunately, I have witnessed first hand an asthma attack, and the victim was a bit careless with the Ventolin inhaler. It was a scary minute as I frantically searched the house to locate it. I discovered it lodged under the wardrobe, within seconds of handing it to the sufferer and the rapid inhalation that followed suit, there was an instant relief which you could guess calmed my frayed nerves :)