Low memory conditions degrade system performance, challenge programs to fulfil their SLA and can lead to out-of-memory errors causing a major system outage. Running low on memory is an especially dangerous situation in case of mission critical, embedded Erlang systems with high availability requirements. In such systems, total system outage must be avoided at all costs. Nonetheless, no solution exists today that can be added to an Erlang system without code modification and would treat memory pressure out of the box.We propose an approach, called Lesser Evil, that can treat low memory pressure in any fault-tolerant Erlang system without the need of any code modification. Our experiments suggest that, with the help of Lesser Evil, an embedded Erlang system can survive low memory conditions and avoid a major outage.