I think that it is not handy in that way.
Instead of getting your salary and then buying some bitcoins with your money, getting some portion of your salary in bitcoin must be right idea as it will save some time and transaction fees too. But I'm not sure getting partial salary in bitcoin will be the option available with all employers.
No company will prefer to pay their employees in two different ways, it will surely waste lot of time and even not all companies will prefer to pay in bitcoins as even they need to be aware about bitcoins first.
Not only that, but from the many employees that they have, there will only be 1 person willing to accept a part of his salary in Bitcoin. Do people seriously think companies will waste their time on just one person? Surely not.
Exactly and I am sure not all employees would be aware about bitcoins, very few of them would be aware about it and may be even they will not accept salary in bitcoins due to the fact that price is too volatile.