quits uqits qiuts iquts uiqts iuqts qutis uqtis qtuis tquis utqis tuqis qitus iqtus qtius tqius itqus tiqus uitqs iutqs utiqs tuiqs ituqs tiuqs quist uqist qiust iqust uiqst iuqst qusit uqsit qsuit squit usqit suqit qisut iqsut qsiut sqiut isqut siqut uisqt iusqt usiqt suiqt isuqt siuqt qutsi uqtsi qtusi tqusi utqsi tuqsi qusti uqsti qsuti squti usqti suqti qtsui tqsui qstui sqtui tsqui stqui utsqi tusqi ustqi sutqi tsuqi stuqi qitsu iqtsu qtisu tqisu itqsu tiqsu qistu iqstu qsitu sqitu isqtu siqtu qtsiu tqsiu qstiu sqtiu tsqiu stqiu itsqu tisqu istqu sitqu tsiqu stiqu uitsq iutsq utisq tuisq itusq tiusq uistq iustq usitq suitq isutq siutq utsiq tusiq ustiq sutiq tsuiq stuiq itsuq tisuq istuq situq tsiuq stiuq
Note: these 'words' (valid or invalid) are all the permutations of the word quits. These words are obtained by scrambling the letters in quits.