be caught napping	be caught sleeping
go out on a limb	state an opinion or do sth different from anyone else
be out on a limb	be alone and lack support from anyone else
limb	large branch of a tree
led astray	influenced so that one does bad things
astray	away from the main path
leave well alone	try not to change or improve sth because it might make things worse
panic stations	a time or situation where you feel very anxious and have to anct quickly
necessary evil	zło konieczne
safe and sound	safe
so sth by the skin of your teeth	only just succeed in doing sth
rather/too close for comfort	so close in distance or similar in amount you are worried or frightened
cut things fine	leave yourself only just enough time to do sth
sth sets alarm bells ringing	sth worries you because it is a sign that there may be a problem
take your life in(to) your hands	do sth very risky
your life is on someone's hands	sb can affect whether you live or die
be hanging by a thread	be likely to fail in the near future
on a knife-edge	in a very difficult situation and there are worries about the future