Buccal Midazolam could be a socially acceptable alternative (compared with rectal diazepam).
It is administered orally, through a syringe (no needle), into the cavity around the gums, each side of the lower jaw. It is as quick as diazepam in stopping seizures and can be administered by a trained person relatively easily. Training is quick and easy too.
I believe dentists use it routinely to calm over-anxious patients. However, it does not have a licence for use with epilepsy in the UK, simply because of the cost in meeting all the testing requirements!
While my daughter was in a specialist epilepsy assessment centre last year, we realised it was widely used by a diverse range of patients. The NSE doctors are unable to prescribe it though, due to the lack of it being licenced!
Hope this gives you somewhere to look for a management solution.
Wishing you success