Creates a test module that unconditionally throws an exception during the remove-module call

UnRemovableModule.ps1

$Module = New-Module -Name 'ImportMe' -ScriptBlock {
    class TryMeException : System.Exception {
        TryMeException() : base() {}
        TryMeException([string]$Message) : base($Message) {}
    }
    $onremove = {
        throw [TryMeException]::new("HOW DARE YOU STEAL THAT CAR")
    }
    $ExecutionContext.SessionState.Module.OnRemove += $onremove
}
Import-Module $Module
Remove-Module -Name 'ImportMe'
Get-Module 'ImportMe'