I'm in two minds about this. Personally (let the 'Victor Meldrew' taunts come flying my way!) I loathe people who milk the system, I have no time for them, don't do that sort of thing myself, ever (last time I was off sick - for three days - was after I face-planted and honestly couldn't have been any use at work). But - I have recollections as to how nasty an employer can behave towards sickies.
Two anecdotes:
1) A colleague went on a sickie for about two months: allegedly 'work related stress'. Well, I suffer from that at times, I don't go on sickies though, I try to keep going. Anyway, this guy was unavailable at the time it was his duty to approve and accept a piece of software done for us by an outside contractor. Since he wasn't available, it fell to our IT techie to approve the software in his place. Trouble was, the IT techie was apparently a personal buddy of the outside contractor, and he approved the package, and authorised payment, without even looking at it. The package is a load of crap and we have never used it since. I've often thought, I
ought to have tried to get both guys strung up on a Disciplinary, or even gone outside the company to the police, but I know I'd have been wasting my effort. Anyway, that little episode has coloured my general opinion of sickies.
2) On the other hand, at a different place, a small company I used to work for, where, with a small workforce, the company used to be hurt badly by too many sickies: the boss invented an interesting ploy. Whenever anyone phoned in sick, he used to dispatch his secretary to buy a bunch of flowers and then proceed
unannounced to the invalid's house. And then report back as to whether anyone answered the door! I don't know what the follow-up was - I thought the whole thing was rather mean-spirited - but nevertheless
.
Be warned!