OP
Spudnik
Handy tip! Do you use gauntlets when removing the fuse?
I know some sparks that swear by them as a huge must.
Generally no.
You can usually tell if one looks a bit dodgy. It is quite rare having problem fuses although i have heard of ones falling apart as they are taken out.
Just make sure ALL CU's have fuses removed/MCB's off and main switch off before pulling.