Are there any strategies to minimise the impact of copy and paste block on the UX?

Follow on from this question

As part of a website the client has asked for a copy and paste block to be implemented. While it has been generally agreed in the other question that this is problematic, at the end of the day the client is king and can have what they like.

If they are firm in wanting a copy and paste block applied, are there any strategies or mechanisms I can put in place to minimise the impact upon the UX? Any best practice examples that are not too detrimental?

Thanks!