People always want to "do" to make it better, when sometimes all that is necessary is to "be". I've lost count of how many unwanted glasses of water I've drunk because I've had a wobble in public and someone's been desperate to "do something to help" and I didn't want them to feel rejected, even though all I actually needed was to sit quietly for a moment. I tried to write a helpful blog entry about it for non-emergency-responders, here. Preventing someone from hurting themselves further is definitely important though, if I'm having what I would describe as a "wiggins" I'd rather have slightly red marks on my upper arms for a minute or so because someone's restrained me from running off, than tyre-tracks across my head thirty seconds later.