Not yet,

100% self taught althought last x-mass I did a "PROPER"

MS network+ course that cost me 1500 from my own pocket,
but i have yet to do the exam.

I have done a lot of propeietery courses with EMC storage,and
DATA_GERNAL clariion. (scsi-3,fibre channel,FC_AL).
and basic IBM Mainframe and basic HP,SUN,IBM unix but I Don't
use them now.