2. No Validation of Block Time:
The timestamp is used directly from `Clock::get()` without any validation that the block time is reasonable or hasn't been manipulated by the validator.

This could lead to:
1. Unnecessary computational overhead from redundant syscalls
2. Inconsistent timestamps between `TradeEvent` and `CompleteEvent` if they're emitted in the same transaction
3. Potential for incorrect historical data if validators manipulate block times

For example:
```rust
// Current implementation might result in:
TradeEvent.timestamp = 1000
CompleteEvent.timestamp = 1001  // Different timestamp from same tx
