There is a point at which, though, however tragic an employee's medical history is, the employer has to say "Look, if you can't do the job in the times you've agreed to, maybe you need to look for shorter hours elsewhere". If the woman who lost her baby suffered from depression afterwards, she may not have had her mind on the minute hand, but after some months - and possibly many repeats of little latenesses - you've got to be fair to all of those employees who ARE'NT nicking five or ten minutes here and there.
I had a manic/depressive (or whatever we have to call it now) working for my pool of secretaries. She was receiving treatment for the condition, which she hadn't revealed at interview or during her pre-employment health check. I was, it seemed, expected to put up with her hysterical periods and her depressive periods to the detriment of her doing an acceptable job. Additionally, she came into work five minutes late every morning, and five minutes late after every lunch hour. That's ten minutes a day, 50 minutes a week, or half a day a month. What it builds up to, just nip-nip-nipping these minutes regularly, is someone who's added 6 paid days to their 'off' time every year, without working. Nice! Would they like to donate 6 days of their holiday back to the company now, to make up for it? Would they hell.
So I had to speak to her about her timekeeping, which led to floods of tears and wailing about her 'condition'. Which brought me to say that if her condition required her, on medical grounds, to need to work shorter hours, she should return to the UK and work part-time. I placed a record of the verbal warning on her file, and the timekeeping miraculously improved. Sometimes, tiresome though it is to deal with fully-formed adults like this, you just have to knock the nonsense on the head.