For this reason, we are in the process of trialling something we are internally calling 'Project Spanner'.
As the name suggests, Project Spanner is all about sending a spanner to customers who we think might be experiencing problems due to their connections not being sufficiently tightened and asking them to ensure that they tighten them.
The spanners look like this:
As modelled by me recently in our London offices.Customers who we are sending the spanners to are also be given instructions on how to use them - which is important, as over tightening the connection (say, by using your own spanner) can also damage the connectors and cause problems.