your origonal post was deleted because it was considered to be too dangerous.
The problem with a forum is that if some one reads it they may assume that as it has been posted then it must be ok.
as for your comment forgive me if i'm wrong but it sounds to me that some of you 'big nobs' are sorry ye didn't think of it first you are forgiven, but it shows how ignorant you are. But yet you understand about the absence of plug with the 7 year old child?
I shall explain.
A fuse or mcb is designed to be "the weakest link" should a fault occur the "weakest link" will activate (trip or blow) by doing as you have suggested the "weakest link" now becomes the cable or what ever is connected to it.
so if a fault does occur the cable for example will get red hot and cause a fire.
take for example a hair dryer done as you suggested, fault occurs, dryer keeps getting hotter and hotter, sets fire to its surroundings, house fire, no more house all because you did as you suggested.
not got a hair dryer, what about the computer you are using, that can also cause a fire too.
do the sensible thing only change "like with like" not like with "something that just may fit and i have lots of it"
do you know how may people are killed each year in house fires, through electrical faults? if people did not do as you suggest, more would be alive today
may what you have done stay in your consious when your or your neighbours house catches fire.