btw, i never take a bath either, at least it doesnt harm the environment and nature if one flushes bathing water apart from the waste of water imho. but bathing WD40 liquid? where to flush it please?? it's like solving one problem (the flickering) and by that creating another problem (where to dispose the excess of the WD40 bathing liquid), again apart from the waste of chemical substance.
if you do it hush hush and simply dispose the WD40 liquid in your kitchen sink, then you could be done within 5mins (record time). If you take your time, it'll take 10mins.