We regularly talk online as it is, so for them it's normal to have me kicking about. I think that drives them to be careful on the net as Im constantly warning them of stuff in passing.. Like the eldest having her mobby no. in view, address on another site, etc. Hence the bit about me keeping tabs on them..
I think they see it as watching their back for them rather than spying on them. TBH I seldom bother checking up on them as they tend to sit n talk geek with me anyways about their page design for such and such a site, what add ons theyve got on another..what crappy things theyve got on MSN in the way of smileys, etc. I also get told who theyre chatting to on MSN, etc.. Not that I get complacent about it, now and again I will accidentally drop a load of clothes off to be put away when theyre on MSN and note what's going on.. as yer do..
I'd never disguise myself as someone else of a similar age to them as it's pointless. They only talk to friends that they know offline at School and at Football club or Youthclub, theyre very cliquey like that round our way... which is quite handy really!