You nearly always end up with a coalition with PR systems - which leads to a lot of negotiations where the party you voted for may negotiate away key policies for a shot of power - like the Lib Dems did in 2010 when they supported the Cameron austerity government.
Sometimes countries can be without a government for a long time if post election negotiations are tricky - for example Sweden was without a government for over 4 months (129 days) in 2018 as neither right or left had a clear majority and there were a lot of negotiations to win over extra support.
Sometimes it gives undue power to very tiny parties - for example if one side needs 4-5 MPs to get over the line to a majority suddenly the tiny and/or regional parties can hold balance of power (Green, Plaid Cymru, SNP, NI, Independents etc). They know their power and often threaten to flounce as a way of gaining concessions. These multi-party coalitions can be unstable and it is difficult to know who to hold to account for decisions.
How ironic - some HMRC staff essentially committing fraud.
Recalled for a further appointment after a routine mammogram
