Letter From Worried Wife........   Hi Gordon   After my failed attempts of food poisoning to curb my husband's relentless enthusiasm for scuba diving, I now find I should write to you as Rob feels it is quite normal to walk around the house in his BCD and I wondered if this is normal practice. Please don't tell anyone, as I do not want him to be embarrassed on Sunday when we dive (like hec), but would appreciate your comments. Perhaps this is something you do yourself?   Worried wife Helen