Um-laut-ish behaviour. (Projoy) Your critical condition could have been even more dire if you'd had a wotsit over the "r", like Dvorak. I can't seem to find it.
The r with a thingy over it doesn't appear to be in the list of HTML entities I can find. Nor indeed the "c" with a... I think it might be called a hacek, but not sure, that is used in Czech words.