We've all seen those adverts where the couple are tucked up in bed and to demonstrate how comfortable their £199 bed is, they instigate a slow motion pillow fight to give a visual representation of love and happiness. Try to recreate that experience with a claustrophobic and you might end up with a slap. We all do it as kids where you trap someone under a blanket and pile on top of them. Doing that to a claustrophobic is as bad as locking them in a boot of your car. Kicking and screaming; being held under the blanket or having a pillow submerge your face is enough to trigger an attack.