I acknowledge the fact that TOM cabin crew work very hard to satisfy the most important people to the company (PAX), however its got to be said that crew are their own worst enemies when it comes to the link between social sickness and the effects that has on their colleague being called out on STBY.
If you are rostered a STBY, 9 times out of 10 the only reason you will get called is if a colleague has just called in sick.
I think that is why that person in LGW got called out 4 times in a row, simply because there were so many people in LGW calling in sick at that time.