$SecPassword = ConvertTo-SecureString 'Password123' -AsPlainText -Force
$Cred = New-Object System.Management.Automation.PSCredential('MEGACORP\sbauer', $SecPassword)
Set-DomainObject -Credential $Cred -Identity jorden -SET @{serviceprincipalname='nonexistent/BLAHBLAH'}
$User = Get-DomainUser jorden
$User | Get-DomainSPNTicket -Credential $Cred | fl